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  • Articles  (84)
  • Other Sources  (50)
  • English  (134)
  • 2020-2023  (134)
  • 2020  (134)
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  • Articles  (84)
  • Other Sources  (50)
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  • 1
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    Denudation Rate Changes Along a Fast‐Eroding Mountainous River With Slate Headwaters in Taiwan From 10Be (Meteoric)/9Be Ratios (2020)
    Details
    Publication Date: 2022-04-05
    Description: Abstract The novel 10Be (meteoric)/9Be system, where 10Be is delivered by precipitation and stable 9Be is released by weathering, provides denudation rates over weathering‐erosion timescales. The new tool is applicable to quartz‐poor lithologies, for example, mafic rock and claystone, which are not readily accessible by the commonly used in situ‐produced 10Be in quartz. We provide a first application of this proxy to a tectonically active mountainous river, the Zhuoshui River in Taiwan. Taiwan Rivers supply a disproportionately high suspended and dissolved flux to the oceans and are often underlain by fine‐grained shale/slate. 10Be (meteoric)/9Be‐derived denudation rates (Dmet) from the Zhuoshui Catchment are highest in the slate‐dominated headwaters (4–8 mm/year), and much lower (1–2 mm/year) along the midlower reaches with mixed lithologies. At the basin‐wide scale, we find a poor correlation between Dmet and basin‐averaged channel steepness despite a small climatic gradient. Because large lithological heterogeneities exist in this basin, we invoke a lithological effect to explain this poor correlation. Relying on a revised stream power incision model that incorporates rock erodibility, the resulting lithology‐ and runoff‐adjusted ksn (kLrsn) can be reconciled with denudation rates with the highest erodibility predicted to prevail in the Miocene slate of low metamorphic grade and high fracture density. This model suggests that the lithological heterogeneity can alter the coupling between surface denudation and channel morphology. On a broader perspective, the successful application of the 10Be (meteoric)/9Be proxy shows its applicability as a tracer for erosion and sediment transport processes in fast‐eroding mountain belts underlain by slate lithologies.
    Description: Key Points 10Be (meteoric)/9Be ratios quantify fast denudation of slate regions in Taiwan Topographic metrics and denudation rates show different spatial patterns Lithologic variability alters coupling between denudation rates and ksn, based on a revised stream power model including rock erodibility
    Description: Freie Universität Berlin‐China Scholarship Council PhD Program
    Description: National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809
    Keywords: ddc:551.3
    Language: English
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  • 2
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    Cold-pool-driven convective initiation: using causal graph analysis to determine what convection-permitting models are missing (2020)
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    Publication Date: 2022-03-25
    Description: Cold-pool-driven convective initiation is investigated in high-resolution, convection-permitting simulations with a focus on the diurnal cycle and organization of convection and the sensitivity to grid size. Simulations of four different days over Germany were performed using the ICON-LEM model with grid sizes from 156 to 625 m. In these simulations, we identify cold pools, cold-pool boundaries and initiated convection. Convection is triggered much more efficiently in the vicinity of cold pools than in other regions and can provide as much as 50% of total convective initiation, in particular in the late afternoon. By comparing different model resolutions, we find that cold pools are more frequent, smaller and less intense in lower-resolution simulations. Furthermore, their gust fronts are weaker and less likely to trigger new convection. To identify how model resolution affects this triggering probability, we use a linear causal graph analysis. In doing so, we postulate a graph structure with potential causal pathways and then apply multi-linear regression accordingly. We find a dominant, systematic effect: reducing grid sizes directly reduces upward mass flux at the gust front, which causes weaker triggering probabilities. These findings are expected to be even more relevant for km-scale, numerical weather prediction models. We thus expect that a better representation of cold-pool-driven convective initiation will improve forecasts of convective precipitation.
    Keywords: ddc:551.6
    Language: English
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  • 3
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    An evaluation of operational and research weather forecasts for southern West Africa using observations from the DACCIWA field campaign in June–July 2016 (2020)
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    Publication Date: 2022-03-25
    Description: Reliable and accurate weather forecasts, particularly those of rainfall and its extremes, have the potential to improve living conditions in densely populated southern West Africa (SWA). The limited availability of observations has long impeded a rigorous evaluation of current state-of-the-art forecast models. The field campaign of the Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa (DACCIWA) project in June–July 2016 has created an unprecedentedly dense set of measurements from surface stations and radiosondes. Here we present results from a comprehensive evaluation of both numerical model forecasts and satellite products using these data on a regional and local level. Results reveal a substantial observational uncertainty showing considerable underestimations in satellite estimates of rainfall and low-cloud cover with little correlation at the local scale. Models have a dry bias of 0.1–1.9 mm·day−1 in rainfall and too low column relative humidity. They tend to underestimate low clouds, leading to excess surface solar radiation of 43 W·m−2. Remarkably, most models show some skill in representing regional modulations of rainfall related to synoptic-scale disturbances, while local variations in rainfall and cloudiness are hardly captured. Slightly better results are found with respect to temperature and for the post-onset rather than for the pre-onset period. Delicate local features such as the Maritime Inflow phenomenon are also rather poorly represented, leading to too cool, dry and cloudy conditions at the coast. Differences between forecast days 1 and 2 are relatively small and hardly systematic, suggesting a relatively quick error saturation. Using explicit convection leads to more realistic spatial variability in rainfall, but otherwise no marked improvement. Future work should aim at improving the subtle balance between the diurnal cycles of low clouds, surface radiation, the boundary layer and convection. Further efforts are also needed to improve the observational system beyond field campaign periods.
    Keywords: ddc:551.6
    Language: English
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  • 4
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    The generalized Ekman model for the tropical cyclone boundary layer revisited: The myth of inertial stability as a restoring force (2020)
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    Publication Date: 2022-03-25
    Description: We revisit the linear boundary-layer approximation that expresses a generalized Ekman balance and use it to clarify a range of interpretations in the previous literature on the tropical cyclone boundary layer. Some of these interpretations relate to the reasons for inflow in the boundary layer and others relate to the presumed effects of inertial stability on boundary-layer dynamics. Inertial stability has been invoked, for example, to explain aspects of boundary-layer behaviour, including the frontogenetic nature of the boundary layer and its relationship to vortex spin-up. Our analysis exposes the fallacy of invoking inertial stability as a resistance to radial inflow in the boundary layer. The analysis shows also that the nonlinear acceleration terms become comparable to the linear Coriolis acceleration terms in relatively narrow vortices that are inertially stable above the boundary layer. Estimates of the nonlinear accelerations using the linear solutions are expected to underestimate the actual contribution in a nonlinear boundary-layer model, cautioning against neglecting the nonlinear terms in diagnostic or prognostic models.
    Keywords: ddc:551.5
    Language: English
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  • 5
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    Promoting sustainable consumption with LCA : a social practice based perspective (2020)
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    Publication Date: 2022-04-22
    Description: Quantitative environmental assessments are crucial in working effectively towards sustainable production and consumption patterns. Over the last decades, life cycle assessments (LCA) have been established as a viable means of measuring the environmental impacts of products along the supply chain. In regard to user and consumption patterns, however, methodological weaknesses have been reported and, several attempts have been made to improve LCA accordingly, for example, by including higher order effects and behavioural science support. In a discussion of such approaches, we show that there has been no explicit attention to the concepts of consumption, often leading to product-centred assessments. We introduce social practice theories in order to make consumption patterns accessible to LCA. Social practices are routinised actions comprising interconnected elements (materials, competences, and meanings), which make them conceivable as one entity (e.g. cooking). Because most social practices include some sort of consumption (materials, energy, air), we were able to develop a framework which links social practices to the life cycle inventory of LCA. The proposed framework provides a new perspective of quantitative environmental assessments by switching the focus from products or users to social practices. Accordingly, we see the opportunity in overcoming the reductionist view that people are just users of products, and instead we see them as practitioners in social practises. This change could enable new methods of interdisciplinary research on consumption, integrating intend-oriented social sciences and impact-oriented assessments. However, the framework requires further revision and, especially, empirical validation.
    Keywords: ddc:300
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 6
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    Driving forces of changing environmental pressures from consumption in the European food system (2020)
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    Publication Date: 2022-04-22
    Description: The paper provides an integrated assessment of environmental and socio-economic effects arising from final consumption of food products by European households. Direct and indirect effects accumulated along the global supply chain are assessed by applying environmentally extended input-output analysis (EE-IOA). EXIOBASE 3.4 database is used as a source of detailed information on environmental pressures and world input-output transactions of intermediate and final goods and services. An original methodology to produce detailed allocation matrices to link IO data with household expenditure data is presented and applied. The results show a relative decoupling between environmental pressures and consumption over time and shows that European food consumption generates relatively less environmental pressures outside Europe (due to imports) than average European consumption. A methodological framework is defined to analyze the main driving forces by means of a structural decomposition analysis (SDA). The results of the SDA highlight that while technological developments and changes in the mix of consumed food products result in reductions in environmental pressures, this is offset by growth in consumption. The results highlight the importance of directing specific research and policy efforts towards food consumption to support the transition to a more sustainable food system in line with the objectives of the EU Farm to Fork Strategy.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 7
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    The role of aggregators in facilitating industrial demand response : evidence from Germany (2020)
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    Publication Date: 2022-03-07
    Description: Industrial demand response can play an important part in balancing the intermittent production from a growing share of renewable energies in electricity markets. This paper analyses the role of aggregators - intermediaries between participants and power markets - in facilitating industrial demand response. Based on the results from semi-structured interviews with German demand response aggregators, as well as a wider stakeholder online survey, we examine the role of aggregators in overcoming barriers to industrial demand response. We find that a central role for aggregators is to raise awareness for the potentials of demand response, as well as to support implementation by engaging key actors in industrial companies. Moreover, we develop a taxonomy that helps analyse how the different functional roles of aggregators create economic value. We find that there is considerable heterogeneity in the kind of services that aggregators offer, many of which do create significant economic value. However, some of the functional roles that aggregators currently fill may become obsolete once market barriers to demand response are reduced or knowledge on demand response becomes more diffused.
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 8
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    Final quantification report : D2.7 ; calculating and operationalising the multiple benefits of energy efficiency in Europe - COMBI (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2022-02-18
    Description: Any energy efficiency impact evaluation can be done from different analytical perspectives, e.g. the investor/end-user perspective, program administrator perspective or the societal perspective. COMBI applies the "societal perspective", as this is most relevant for policy-making. COMBI draws on a reference scenario until the year 2030 including existing (partially already ambitious) policies. By modelling 21 sets of "energy efficiency improvement" (EEI) actions, a second efficiency scenario was modelled amounting to additional energy savings of around 8% p.a. in 2030, that is comparable to the EUCO+33 to EUCO+35 scenario. This D2.7 quantification report summarises the quantification approaches applied in the COMBI project and main project findings. It therefore draws on other COMBI reports that contain this information in greater detail in order to summarise quantifications. The report is structured in three main sections: 1. The COMBI approach and methods, explaining key methodological approaches both for individual impact quantifications and for the aggregation of impacts 2. Quantification results, giving an overview on main figures of quantified indicators and 3. Insights from cross-impact analysis, which gives a comparison between monetised impacts and presents their use for Cost-Benefit calculations in the COMBI online tool.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 9
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    The state-of-the-art of organic waste to energy in Latin America and the Caribbean : challenges and opportunities (2020)
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    Publication Date: 2022-02-18
    Description: Organic waste to energy (OWtE) technologies have been developed and implemented in Latin America and the Caribbean (LAC) countries. However, they are still far away to significantly contribute not only to treat the ever-increasing waste volumes in the region but also to supply the regional energy demand and meet national carbon emission goals. The technical complexity of these technologies aligned with lack of research, high investment costs and political deficiencies have not allowed for an appropriate implementation of OWtE in the region, where the applicability of large-scale plants remains to be demonstrated. This research presents the state-of-the art of OWtE technologies in the context of the LAC countries based on archival research method. In addition, it presents challenges and opportunities that the region is facing for an adequate implementation of these technologies. The main findings show that OWtE have the potential to improve waste and energy systems in the region by reducing environmental impacts along with a series of social and economic benefits, such as increasing access to a sustainable energy supply. Diverse researches indicate principally anaerobic digestion, fermentation (e.g. 2G bioethanol, etc.), microbial fuel cells, gasification and pyrolysis as efficient technologies to treat solid organic wastes and produce bioenergy.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 10
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    Prevention of plastic waste in production and consumption by multi-actor partnerships (2020)
    Bonn : PREVENT Waste Alliance
    Details
    Publication Date: 2022-02-18
    Description: The study sheds light on the background of the prevention of plastic waste from packaging and disposable products by explaining the need for action, the environmental impacts and risks to human health. Experiences of the members of the PREVENT Waste Alliance and their partners in the prevention of plastic waste by multi-actor partnerships are presented by means of 17 best practice examples. Finally, the study gives recommendations for the reduction of plastic waste and the further work of the PREVENT Waste Alliance. These include success factors for waste prevention, necessary next steps and conclusions regarding the necessary political framework conditions.
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 11
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    The age of development : an obituary (2020)
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    Publication Date: 2022-02-18
    Description: Wolfgang Sachs wrote a seminal series of essays for the New Internationalist in 1992 called "Development: a guide to the ruins". The concept of development lives on - and takes on new shapes as it is reframed by the UN, reinterpreted by the Vatican or hijacked by authoritarian populists to serve their own nationalist agenda. But, he argues now, we need to move beyond its misguided assumptions into a new post-development era based on eco-solidarity.
    Keywords: ddc:300
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 12
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    A sectoral perspective on climate clubs (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
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    Publication Date: 2022-02-18
    Description: Much of the current literature on climate clubs sees mitigation costs creating free rider incentives as the main problem of climate policy. Climate clubs are supposed to solve this problem by creating additional incentives for mitigation. Looking more in detail, one sees that the situation differs from sector to sector. Some industry sectors indeed have substantial cost and competitiveness issues. In others such as electricity and transport, there are costs at micro level but balance for economy and society as a whole is rather positive. International climate policy in general and clubs in particular should therefore be tailored to sectoral specifics.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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  • 13
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    Multiple impacts of energy efficiency in policy-making and evaluation : D8.2 ; policy report on COMBI results (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2022-02-18
    Description: The COMBI project aimed at quantifying the multiple non-energy benefits of energy efficiency in the EU-28 area and incorporate those multiple impacts into decision-support frameworks for policy-making. Therefore, all multiple impacts of energy efficiency are analysed from an overall societal view in the project. The COMBI policy recommendations resulting from the evaluation outcomes are presented in this report. COMBI draws on a reference scenario until the year 2030 including existing policies. By modelling 21 sets of "energy efficiency improvement" (EEI) actions, a second efficiency scenario was modelled amounting to additional energy savings of around 8% p.a. in 2030, and that is comparable to the EUCO+33 to EUCO+35 scenario. All figures quantified by COMBI relate to additional values, i.e. additional impacts resulting from additional EEI actions beyond the reference scenario as a consequence of additional policies. The project quantified in total 31 individual impact indicators with appropriate state-of-the-art models.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: report , doc-type:report
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  • 14
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    The Eon/RWE deal : market dominance and shareholder value policy with regulatory approval (2020)
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    Publication Date: 2022-02-18
    Description: On September 17, 2019, EU Competition Commissioner Margrethe Vestager allowed the electricity company Eon to take over and break up RWE subsidiary Innogy under lenientconditions. But there are numerous experts who have a different opinion and argue that the EU Commission approval is a "decision of enormous importance" that will "fundamentally change the entire sector". The result of this decision is that this mega-deal creates two monolithic giants in the German energy sector with unprecedented market power. If one compares the situation with the purchase of the electricity supplier Nuon by Vattenfall in 2009, questions arise. Back then, the competition authorities forced Vattenfall to divest parts of Nuon's business in individual cities, which resulted in the supplier "lekker energie". Following this example, the competition authorities should have consistently forced Eon to sell parts of the business, such as larger distribution companies. A transaction of this magnitude should always be viewed critically in competition law. The legitimate question therefore arises as to why the German and European competition authorities (the Federal Cartel Office, the Federal Network Agency, the Monopolies Commission and the European Competition Commission) faced this deal with barely audible criticism and why they did not react with far-reaching prohibition requirements. "Competition doubts are certainly justified". Because if the two largest German energy groups completely eliminate each other's competition and completely divide up their business areas among themselves, this will have far-reaching consequences for the energy sector. Especially against the background that the energy transition in Germany has so far been characterised by decentralised structures and civic participation (especially in the case of electricity generation from renewable energies). In this paper, the authors will demonstrate what this Eon/RWE deal means for competition and the energy transition.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 15
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    Impact report NRW sustainability bond #4 : analysis of the sustainability bond #4 issued in 2018 by the German state of North Rhine-Westphalia (NRW) (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
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    Publication Date: 2022-02-18
    Description: The Wuppertal Institute conducted an impact analysis of the NRW Sustainability Bond #4 of 2018 on behalf of the State Government of North Rhine-Westphalia (NRW). The most recent bond has a volume of EUR 2.025bn, a term of 10 years and consists of 52 eligible projects from the State's 2017 general budget (sustainable value-added was confirmed in a second party opinion by oekom research1). This report analyses the contribution of the bond to climate mitigation, sustainable land use and social impacts. It also includes information on the impacts of the previous three bonds (NRW Sustainability Bond #1 to #3).
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 16
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    Let's justify! : How regime complexes enhance the normative legitimacy of global governance (2020)
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    Publication Date: 2022-02-18
    Description: This theory note develops a theoretical approach which integrates the negative spillovers that international institutions often impose on each other into our thinking about their normative legitimacy. Our approach draws on the political philosophy of Rainer Forst which revolves around the right to justification. It suggests that regime complexes facilitate the breakup of institution-specific orders of justification by prompting invested actors to justify negative spillovers vis-a-vis each other. Thus, regime complexes enable more encompassing justifications of negative spillovers than stand-alone international institutions. Against this backdrop, we submit that the proliferation of regime complexes represents normative progress in global governance.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 17
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    Inventives for private sectory participation in the article 6.4 mechanism : discussion paper (2020)
    Berlin : German Emissions Trading Authority (DEHSt)
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    Publication Date: 2022-02-18
    Description: Article 6.4 of the Paris Agreement explicitly acknowledges the need to incentivize and facilitate the participation of private entities in the mitigation of greenhouse gas emissions. Under the Clean Development Mechanism (CDM), private sector actors had already the opportunity to participate in a new and fast-growing market. However, they faced numerous challenging investment barriers. The study provides an overview on key factors and barriers determining private sector participation in Article 6 mechanisms. It distinguishes between the three topics demand side factors, rules and standards for market mechanisms, and supply side factors and provides for each of them options to mitigate or overcome barriers. In a short analysis, it further explores three of the identified options: - Improving the design and support of national systems and capacities is an important pre-requisite for the private sector to be able to generate and sell ITMOs - The up-scaling of mitigation activities e. g. through (sub-) sector level crediting, and policy crediting helps private sector actors to benefit from economies of scale - Exploring the potential of digitization of measuring, reporting and verification (MRV), e. g. the use of sensors, internet of things, artificial intelligence and blockchain to make the project cycle more efficient and reduce transaction costs. Overall, the report stresses the importance of host country readiness to provide the private sector with a robust and trusted environment that allows for the adoption of Article 6 mechanisms.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 18
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    Meta-analysis of industry sector transformation strategies in German, European and global deep decarbonisation scenarios (2020)
    Stockholm : European Council for an Energy Efficient Economy
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    Publication Date: 2022-02-18
    Description: This paper analyses and compares industry sector transformation strategies as envisioned in recent German, European and global deep decarbonisation scenarios. The first part of the paper identifies and categorises ten key strategies for deep emission reductions in the industry sector. These ten key strategies are energy efficiency, direct electrification, use of climateneutral hydrogen and/or synthetic fuels, use of biomass, use of CCS, use of CCU, increases in material efficiency, circular economy, material substitution and end-use demand reductions. The second part of the paper presents a meta-analysis of selected scenarios, focusing on the question of which scenario relies to what extent on the respective mitigation strategies. The key findings of the meta-analysis are discussed, with an emphasis on identifying those strategies that are commonly pursued in all or the vast majority of the scenarios and those strategies that are only pursued in a limited number of the scenarios. Possible reasons for differences in the choice of strategies are investigated. The paper concludes by deriving key insights from the analysis, including identifying the main uncertainties that are still apparent with regard to the future steps necessary to achieve deep emission reductions in the industry sector and how future research can address these uncertainties.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 19
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    Organizational resilience : how SUITS' local authorities were prepared to cope with the COVID-19 pandemic (2020)
    Coventry : Coventry University
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    Publication Date: 2022-02-18
    Description: This SUITS policy brief aims to highlight how the transformational process of the nine local authorities involved in SUITS into learning organizations made these cities far better prepared to cope with the challenges due to the pandemic than they would otherwise have been. Due to the higher levels of organizational resilience and the awareness of individuals' importance during such external crises, the nine local authorities were not just trying to react to the unforeseen challenges, but were able to act with a clear pathway and to use their experiences to facilitate their learning from recent years. Of course, the pandemic could not have been foreseen, but as SUITS local authorities are becoming learning organizations, they are enhancing their organizational capacity. In so doing, they have been learning a required resilience to reduce the "complexity and confusion - of what to do best" in the beginning of the crisis and to cope with the challenges. This advantage was of enormous relevance for the local authorities.
    Keywords: ddc:380
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 20
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    Updating the waste prevention programme : preparing the foundations for updating the waste prevention programme based on an analysis and evaluation of the implementation status ; final report (2020)
    Dessau-Roßlau : Umweltbundesamt
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    Publication Date: 2022-02-18
    Description: The waste prevention program (WPP) from 2013 must be evaluated every 6 years and updated if necessary. The review and evaluation of the implementation of the WPP took place within the scope of the project. Based on the analysis results for the implementation of the WPP at federal, state and municipal level and an assessment of existing prevention potentials, concrete proposals for a possible further development and updating of the program on prioritized waste streams and corresponding priority prevention approaches were developed. In addition, structural adjustment and change needs of the WPP were worked out and further research was shown.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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  • 21
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    Design options for the new international market mechanism under article 6.4 of the Paris agreement (2020)
    Dessau-Roßlau : Umweltbundesamt
    Details
    Publication Date: 2022-02-18
    Description: In this project commissioned by the German Environment Agency, important aspects of the mechanism under Article 6.4 of the Paris Agreement were examined in more detail. This mechanism is to succeed the CDM under the Kyoto Protocol from 2021 onwards, but it will contain decisive improvements, especially with regard to a robust accounting of emission reductions and better integration into the national climate policy of the host country. The report is addressed to the international experts, in particular to the delegates to the climate conference and observers, and is therefore written in English. A German summary is included. The following topics are covered: How does the mechanism achieve an overall reduction of global emissions? Are there opportunities to use benchmarks to establish baselines? Can contributions to increasing ambition be made by using Art. 6.4? What contribution can the voluntary market make to increasing ambition in the future? Introduction of incentives for the participation of private companies under Art. 6.4 of the PA. The role of the Art. 6.4 mechanism on the way to a net zero emission world. The project provides a contribution to the general discussion in the EU as well as to the Article 6 - Negotiations under the UNFCCC. It is a contribution that presents backgrounds and interrelationships for individual questions concerning the design of the new market mechanisms under Article 6 and can thus contribute to a more informed decision-making process.Since there are, however, several different ways of designing a mechanism that can avoid double counting and provide incentives for increasing ambition, this project is only one of several current contributions to the international discussion.
    Keywords: ddc:320
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    Eco-innovation observatory : country profile 2018-2019 Germany (2020)
    Brussels : European Commission
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    Publication Date: 2022-02-18
    Description: Germany's eco-innovation performance has declined compared to previous reports and scores 123 against 100 of the EU average. It is still quite high with respect to the input side of eco-innovation and relatively good, i.e. above EU average concerning socio-economic and eco- innovative outputs. However, the revised eco-innovation index shows weaknesses in eco-innovation activities and environmental outcomes. All in all, Germany ranks 6 this year.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Impact report NRW sustainability bond #5 : analysis of the sustainability bond #5 issued in 2019 by the German state of North Rhine-Westphalia (NRW) (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2022-02-18
    Description: The Wuppertal Institute conducted an impact analysis of the NRW sustainability bond #5 of 2019 on behalf of the State government of North Rhine-Westphalia (NRW). The most recent bond has a volume of EUR 2.25 bn, a term of 15 years and consists of 52 eligible projects from the State's 2018 general budget (sustainable value-added was confirmed in a second party opinion by ISS-oekom). This report analyses the contribution of the bond to climate mitigation, sustainable land use and social impacts. It also includes information on the impacts of the previous four bonds (NRW sustainability bond #1 to #4).
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Options for fostering a net-zero GHG emission world under the Paris article 6.4 mechanism : discussion paper (2020)
    Berlin : German Emissions Trading Authority (DEHSt)
    Details
    Publication Date: 2022-02-18
    Description: The new mechanism defined under Article 6.4 of the Paris Agreement is supposed to allow for international cooperation with regard to climate change mitigation and thereby enable an increase in overall mitigation. Nevertheless, the design of the mechanism under Article 6.4 should also make sure that it is not be in conflict with the long-term goal of net-zero GHG emissions but even better foster national pathways leading to this objective. Building this into the mechanism requires to shift the focus from short- and mid-term considerations to the long-term perspective in one way or another. This discussion paper explores three different approaches that may help to foster the long-term objective of net-zero GHG emissions in the operationalization of Article 6.4, namely positive and negative lists, additionality with regard to a baseline consistent with both, NDCs and long-term targets, as well as adaptation of existing instruments and criteria from climate finance. The detailed discussion of the ap-proaches shows that the approaches should not be seen as mutually exclusive but rather as comple-mentary to each other. From the analyses, two storylines emerge how to combine aspects of the differ-ent approaches in a reasonable way to foster the long-term objective of net-zero GHG emissions under Article 6.4.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
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    Dynamics of cross-industry low-carbon innovation in energy-intensive industries (2020)
    Stockholm : European Council for an Energy Efficient Economy
    Details
    Publication Date: 2022-02-18
    Description: Technological innovations in energy-intensive industries (EIIs) have traditionally emerged within the boundaries of a specific sector. Now that these industries are facing the challenges of deep decarbonisation and a significant reduction in greenhouse gas (GHG) emissions is expected to be achieved across sectors, cross-industry collaboration is becoming increasingly relevant for low-carbon innovation. Accessing knowledge and other resources from other industrial sectors as well as co-developing innovative concepts around industrial symbiosis can be mutually beneficial in the search for fossil-free feedstocks and emissions reductions. In order to harness the potential of this type of innovation, it is important to understand not only the technical innovations themselves, but in particular the non-technical influencing factors that can drive the successful implementation of cross-industry collaborative innovation projects. The scientific state of the art does not provide much insight into this particular area of research. Therefore, this paper builds on three separate strands of innovation theory (cross-industry innovation, low-carbon innovation and innovation in EIIs) and takes an explorative case-study approach to identify key influencing factors for cross-industry collaboration for low-carbon innovation in EIIs. For this purpose, a broad empirical database built within the European joint research project REINVENT is analysed. The results from this project provide deep insights into the dynamics of low-carbon innovation projects of selected EIIs. Furthermore, the paper draws on insights from the research project SCI4Climate.NRW. This project serves as the scientific competence centre for IN4Climate.NRW, a unique initiative formed by politicians, industry and science to promote, among other activities, cross-industry collaboration for the implementation of a climate-neutral industry in the German federal state of North Rhine-Westphalia (NRW). Based on the results of the case study analysis, five key influencing factors are identified that drive the implementation of cross-industry collaboration for low-carbon innovation in EIIs: Cross-industry innovation projects benefit from institutionalised cross-industry exchange and professional project management and coordination. Identifying opportunities for regional integration as well as the mitigation of financial risk can also foster collaboration. Lastly, clear political framework conditions across industrial sectors are a key driver.
    Keywords: ddc:600
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    Needs of electricity, hydrogen and carbon infrastructures for greenhouse gas neutral heavy industry clusters in the EU 2050 (2020)
    Stockholm : European Council for an Energy Efficient Economy
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    Publication Date: 2022-02-18
    Description: The reduction of greenhouse gas (GHG) emissions by energyintensive industries to a net zero level is a very ambitious and complex but still feasible challenge, as recent studies show for the EU level. "Industrial Transformation 2050" by Material Economics (2019) is of particular relevance, as it shows how GHG-neutrality can be achieved in Europe for the sectors chemicals (plastics and ammonia), steel and cement, based on three main decarbonisation strategies. The study determines the resulting total demands for renewable electricity, hydrogen and for the capture and storage of CO2 (CCS). However, it analyses neither the regional demand patterns that are essential for the required infrastructure nor the needed infrastructure itself. Against this background the present paper determines the regional distribution of the resulting additional demands for electricity, hydrogen and CCS in Europe in the case that the two most energy and CCS intensive decarbonisation strategies of the study above will be realised for the existing industry structure. It explores the future infrastructure needs and identifies and qualitatively assesses different infrastructure solutions for the largest industrial cluster in Europe, i.e. the triangle between Antwerp, Rotterdam and Rhine-Ruhr. In addition, the two industrial regions of Southern France and Poland are also roughly examined. The paper shows that the increase in demand resulting from a green transformation of industry will require substantial adaptation and expansion of existing infrastructures. These have not yet been the subject of infrastructure planning. In particular, the strong regional concentration of additional industrial demand in clusters (hot spots) must be taken into account. Due to their distance from the high-yield but remote renewable power generation potentials (sweet spots), these clusters further increase the infrastructural challenges. This is also true for the more dispersed cement production sites in relation to the remote CO2 storage facilities. The existing infrastructure plans should therefore be immediately expanded to include decarbonisation strategies of the industrial sector.
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Starting low, reaching high? : Sequencing in EU climate and energy policies (2020)
    Details
    Publication Date: 2022-02-18
    Description: In order to achieve the UNFCCC Paris Agreement goals, climate policies worldwide require considerable ratcheting-up. Policy sequencing provides a framework for analysing policy process dynamics that facilitate ratcheting-up. We apply a sequencing perspective to two key EU climate and energy policies, the Emissions Trading Scheme (ETS) and the Renewable Energy Directive (RED), to comparatively test the empirical relevance of sequencing for single policies - in addition to sequencing across policies, which has been the focus of sequencing theory so far - and to uncover specific mechanisms. Our results confirm that sequencing, based on triggering positive and controlling negative feedback, is relevant both within and across policies. Policy choices that may facilitate ratcheting-up include tools to control costs, the possibility to centralise and harmonise in a multi-level governance context, options for compensation of reluctant actors, and the encouragement of learning processes.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Assessment report: recent initiatives in science and policy to promote sustainable consumption and recommendations to enhance the German sustainable development strategy in, with and by Germany (2020)
    Berlin : adelphi research
    Details
    Publication Date: 2022-02-18
    Description: This assessment report identifies six key areas of sustainable consumption. Transforming those areas is associated with a significant, positive impact on sustainable development. In this way, those key areas lay the foundation to set clear priorities and formulate concrete policy measures and recommendations. The report describes recent developments and relevant actors in those six fields, outlines drivers and barriers to reach a shift towards more sustainability in those specific areas, and explores international good-practice examples. On top of this, overarching topics in the scientific discourse concerning sustainable consumption (e.g. collaborative economy, behavioural economics and nudging) are revealed by using innovative text-mining techniques. Subsequently, the report outlines the contributions of these research approaches to transforming the key areas of sustainable consumption. Finally, the report derives policy recommendations to improve the German Sustainable Development Strategy (DNS) in order to achieve a stronger stimulus effect for sustainable consumption.
    Keywords: ddc:300
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    COP25 in search of lost time for action : an assessment of the Madrid climate conference (2020)
    Details
    Publication Date: 2022-02-18
    Description: Last year's conference of the global climate change regime took place from 2 until 15 December 2019 in Madrid, Spain. Despite marking a new record for overtime in the history of the UNFCCC, the conference did not only fail to meet the increasing public demand for swift and strong climate action, it also failed on its formal mandate to finalise the Paris rulebook. A record number of issues were left unresolved and shelved for the next session. COP25 thereby highlighted how much work still lies ahead both domestically and internationally if 2020 is to see a step-up in climate action that is consistent with the long-term goal of the Paris Agreement.
    Keywords: ddc:320
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    Simulating geographically distributed production networks of a climate neutral European petrochemical industry (2020)
    Stockholm : European Council for an Energy Efficient Economy
    Details
    Publication Date: 2022-02-18
    Description: The paper describes quantitative scenarios on a possible evolution of the EU petrochemical industry towards climate neutrality. This industry will be one of the remaining sectors in a climate neutral economy still handling hydrocarbon material to manufacture polymers. Concepts of a climate neutral chemical industry stress the need to consider the potential end-of-life emissions of polymers produced from fossil feedstock and draft the vision of using renewable electricity to produce hydrogen and to use renewable (hydro)carbon feedstock. The latter could be biomass, CO2 from the air or recycled feedstock from plastic waste streams. The cost-optimization model used to develop the scenarios describes at which sites investments of industry in the production stock could take place in the future. Around 50 types of products, the related production processes and the respective sites have been collected in a database. The processes included cover the production chain from platform chemicals via intermediates to polymers. Pipelines allowing for efficient exchange of feedstock and platform chemicals between sites are taken into account as well. The model draws on this data to simulate capacity change at individual plants as well as plant utilization. Thus, a future European production network for petrochemicals with flows between the different sites and steps of the value chain can be sketched. The scenarios described in this paper reveal how an electrification strategy could be implemented by European industry over time with minimized societal costs. Today's existing assets as well as geographical variance of energy supply and the development of demand for different plastic sorts are the major model drivers. Finally, implications for the chemical industry, the energy system and national or regional governments are discussed.
    Keywords: ddc:600
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    Value chain-wide energy efficiency potentials of additive manufacturing with metals : some preliminary hypotheses (2020)
    Stockholm : European Council for an Energy Efficient Economy
    Details
    Publication Date: 2022-02-18
    Description: For some time, 3D printing has been a major buzzword of innovation in industrial production. It was considered a game changer concerning the way industrial goods are produced. There were early expectations that it might reduce the material, energy and transport intensity of value chains. However for quite a while, the main real world applications of additive manufacturing (AM) have been some rapid prototyping and the home-based production of toys made from plastics. On this limited basis, any hypotheses regarding likely impacts on industrial energy efficiency appeared to be premature. Notwithstanding the stark contrast between early hype and practical use, the diffusion of AM has evolved to an extent that at least for some applications allows for a preliminary assessment of its likely implications for energy efficiency. Unlike many cross-cutting energy efficiency technologies, energy use of AM may vary substantially depending on industry considered and material used for processing. Moreover, AM may have much greater repercussions on other stages of value chains than conventional cross-cutting energy efficiency technologies. In case of AM with metals the following potential determinants of energy efficiency come to mind: - A reduction of material required per unit of product and used during processing; - Changes in the total number and spatial allocation of certain stages of the value chain; and - End-use energy efficiency of final products. At the same time, these various streams of impact on energy efficiency may be important drivers for the diffusion of AM with metals. This contribution takes stock of AM with metals concerning applications and processes used as well as early evidence on impacts on energy efficiency and combine this into a systematic overview. It builds on relevant literature and a case study on Wire Arc Additive Manufacturing performed within the REINVENT project.
    Keywords: ddc:600
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    Participatory modeling for transition governance : linking methods to process phases (2020)
    Details
    Publication Date: 2022-02-18
    Description: Participatory modeling - the involvement of stakeholders in the modeling process - can support various objectives, such as stimulating learning processes or promoting mutual understanding of stakeholders. Participatory modeling approaches could therefore be useful for the governance of transitions, but a systematic account of potential application areas of participatory modeling methods in transition governance is still lacking. This article addresses this gap by providing a review of participatory modeling methods and linking them to phases and objectives of transition governance. We reviewed participatory modeling studies in transition research and related fields of social-ecological modeling, integrated assessment and environmental management. We find that participatory modeling methods are mostly used for participatory visioning and goal setting as well as for interactive strategy development. The review shows the potential for extending the application of participatory modeling methods to additional phases of transition governance and for the exchange of experiences between research fields.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Transformation processes of energy companies : application to Jordan (2020)
    Amman : Friedrich-Ebert-Stiftung Jordan & Iraq
    Details
    Publication Date: 2022-02-18
    Description: The energy system of Jordan is facing a rise in energy demand while at the same time having quite limited own conventional energy resources. Especially because of their high import dependency, Jordan is starting to change its energy system and puts a higher focus on renewable energy (like wind and solar) and energy efficiency. In this short paper the authors discuss the transformation of energy companies in Germany and highlight the possibilities of energy efficiency services. Furthermore, they examinate the transferability to Jordan, based on the results of a questionnaire among Jordan energy experts. Due to the low level of research knowledge in the specific field, this is an exploratory research approach. The role, challenges and opportunities of Jordan's state-owned National Electric Power Company NEPCO have been highlighted.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Benchmark: climate and environmentally friendly urban passenger transport : the concepts of the European Green Capitals 2010-2020 (2020)
    Details
    Publication Date: 2022-02-18
    Description: It has been widely recognized that there is an urgent need for more sustainable urban transport policy and planning. To understand ambitious policy approaches, "relatively successful" cities are regularly subject of analyses. This paper also focuses on relatively successful cities - by reviewing the application documents of the winner cities of the European Green Capital Award (EGCA). Award schemes not only aim to reward leading participants, but likewise aim to contribute to knowledge transfer and the dissemination of good practice examples to non-participants. So far award schemes and good practice approaches have received limited attention by research. This paper reviews and analyses the application forms of the EGCA winning cities to learn about ambitious policy approaches to sustainable and climate-friendly urban transport.
    Keywords: ddc:380
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
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    Financial carbon footprint : calculating banks' scope 3 emissions of assets and loans (2020)
    Stockholm : European Council for an Energy Efficient Economy
    Details
    Publication Date: 2022-02-18
    Description: Financial institutions play a crucial role in achieving the 2015 Paris Climate Agreement. They can manage capital flows for financing the required transformation towards a decarbonized industry. Currently established policy programs and regulations at European and national level increasingly address financial institutions to make their climate warming impact measurable and transparent. However, required science-based assessment methods have not been sufficiently developed so far. This paper discusses methodological opportunities and challenges for measuring carbon footprints of financial institutions. Based on a scientific case study undertaken with the German GLS Bank, the authors introduce an innovative method for quantifying greenhouse gas emissions from a bank's asset with a focus on loans. The authors apply an input/output database to calculate greenhouse gas (GHG) intensities and allocate them with bank's loans and investments. Moreover, the paper provides insights of calculating avoided GHG emissions initiated by a bank's investment and loans. In conclusion, a high degree of consistent and standardized assessment methods and guidelines need to be developed and applied to promote comparability and transparency.
    Keywords: ddc:600
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    Multilevel knowledge management for municipal climate action : lessons from evaluating the operational situation of climate action managers in the German Federal State of Lower Saxony (2020)
    Details
    Publication Date: 2022-02-18
    Description: Effective actions to mitigate climate change are urgently needed, especially in the context of cities, which are major sources of global CO2 emissions. Establishing and managing knowledge systems that integrate local knowledge can contribute to establishing more effective responses to climate change as well as transformative change towards sustainability. However, it is still unclear how new forms of urban governance should acquire, store, create, or disseminate knowledge for fostering sustainability transitions effectively. In this study, we present a multilevel knowledge system approach based on design principles informed especially by the knowledge management literature. These address (i) working environments across multiple levels, (ii) knowledge forms and types, and (iii) knowledge processes. We apply this approach to municipal climate action in the German energy transition. In particular, we focus on the operational work of municipal climate action managers of regional centers of Lower Saxony, one of the largest of the 16 federal states, and investigate their involvement in knowledge processes. Based on semi-structured interviews in 14 of the 17 regional centers, we show that structural pre-conditions for successful knowledge management and organizational learning are present. However, we also show that there is a need for improvement regarding (i) the multilevel coordination for accelerating routine operation, (ii) the persistence of local operational knowledge, and (iii) the exploitation of local innovations. Relying on these results, we offer general recommendations for municipal climate action and suggest that policies should (i) rely on local knowledge for effective decision-making, (ii) foster multilevel exchanges of explicit and tacit knowledge for implementation, and (iii) enable open-ended learning processes that leverage local innovations for creating usable transformational knowledge.
    Keywords: ddc:300
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    Global climate (2020)
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    Publication Date: 2022-05-10
    Description: The annual Climate Change Conference took place on 2-15 December in Katowice, Poland. It included the twenty-fourth Conference of the Parties (COP-24) to the UN Framework Convention on Climate Change (UNFCCC), the fourteenth Meeting of the Parties to the Kyoto Protocol (MOP-14), the resumed first Meeting of the Parties to the Paris Agreement (MOP-1), and their subsidiary bodies. The conference had two main objectives: operationalizing the Paris Agreement by adopting detailed rules for its implementation and starting the process of strengthening the parties' climate protection contributions.
    Keywords: ddc:320
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    Conflicts of climate change mitigation actions with the Sustainable Development Goals : creating a systematic overview by the example of renewable energy technologies (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2022-11-10
    Description: Despite a strong connection between the Paris Agreement and the 2030 Agenda for Sustainable Development, climate change mitigation actions and sustainable development objectives are oftentimes not aligned efficiently, causing conflicts between the objectives. This thesis creates a systematic overview of conflicts of three renewable energy technologies with the Sustainable Development Goals (SDGs) by a literature review in Web of Science. The technologies solar energy, wind energy and hydropower function as examples for climate change mitigation actions. Out of 530 screened articles, 63 demonstrated conflicts. The systematic overview reveals that conflicts are different for each technology, but conflicts in regard to biodiversity loss and the degradation of natural habitats (SDG 15) and inequalities (SDG 10) were frequently identified for all technologies. The results of the systematic overview suggest that the site selection and the decision-making process on the construction of renewable energy projects are crucial stages to avoid conflicts with the SDGs.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: masterthesis , doc-type:masterThesis
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    Smart Governance: Kashiwa-no-ha smart city in Japan as a model for future urban development? (2020)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2022-11-10
    Description: Since urban processes need models of possible futures (referred to as travelling concepts) to drive their development, this study investigates whether planned-from-scratch smart city Kashiwa-no-ha International Campus Town Initiative can produce such an image with its smart governance approach, that is combined with an urban living lab. Using geographical governance research in relation to urban development processes as a framework, this master's thesis derives its own definition of the fuzzy concept of smart governance within the smart city vision based on a socio-geographical understanding of space, here referred to as Smart Urban Governance. Additionally, a set of indicators for the operationalisation of Smart Urban Governance is designed and applied to the case study. Methodologically, the thesis pursues a qualitative approach and, in this context, carries out a descriptive and normative governance analysis of Kashiwa-no-ha on the basis of the existing literature and empirical surveys conducted by the author. In summary, the strong role of academia in the urban planning context of community-building in Kashiwa-no-ha is exemplary and has led to a collaborative code of conduct between the traditional actors, mediated by a public-private-academic partnership, as well as to co-innovation between the city, developers, and citizens in form of a public-private-people partnership. Although the flagship project successfully addresses a large number of the Smart Urban Governance indicators defined in this context, there is potential for improvement, for example, in terms of participation, transparency, inclusion, and public spaces. Since Kashiwa-no-ha Smart City is still in an implementation phase until 2030, the thesis concludes with a forecast and a recommendation for action based on a strengths, weaknesses, opportunities, and threats analysis.
    Keywords: ddc:320
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    Historical Earthquakes, Paleoseismology, Neotectonics and Seismic Hazard: New Insights and Suggested Procedures (2020)
    Deutsche Gesellschaft für Erdbebeningenieurwesen und Baudynamik (DGEB) e.V. | Kiel
    Details
    Publication Date: 2022-07-13
    Description: This publication developed from the 5th International Colloquium on “Historical Earthquakes, Paleoseismology, Neotectonics and Seismic Hazard” which was held from 11 to 13 October 2017 at the Federal Institute for Geosciences and Natural Resources (BGR) in Hannover, Germany. In this colloquium, 75 experts from 17 countries presented and discussed recent results, ongoing studies and planned projects on the topics historical earthquakes, macroseismology, archeoseismology, paleoseismology, earthquake catalogues and databases, active faults, seismotectonics, neotectonics, and seismic hazard assessment.
    Description: Deutsche Gesellschaft für Erdbebeningenieurwesen und Baudynamik
    Description: 〈b〉Introduction: Historical Earthquakes, Paleoseismology, Neotectonics and Seismic Hazard: New Insights and Suggested Procedures〈/b〉 〈br〉 〈i〉Diethelm Kaiser〈/i〉 〈br〉 〈a href="https://doi.org/10.23689/fidgeo-3868"〉 DOI: https://doi.org/10.23689/fidgeo-3868〈/a〉〈br〉 〈br〉〈/br〉 〈b〉Best practice of macroseismic intensity assessment applied to the earthquake catalogue of southwestern Germany〈/b〉 〈br〉 〈i〉 Wolfgang Brüstle, Uwe Braumann, Silke Hock and Fee-Alexandra Rodler 〈/i〉〈br〉 〈a href="https://doi.org/10.23689/fidgeo-3864"〉 DOI:https://doi.org/10.23689/fidgeo-3864〈/a〉〈br〉 〈br〉〈/br〉 〈b〉The earthquake of September 3, 1770 near Alfhausen (Lower Saxony, Germany): a real, doubtful, or a fake event? 〈/b〉 〈br〉 〈i〉Günter Leydecker and Klaus Lehmann 〈/i〉 〈br〉〈a href="https://doi.org/10.23689/fidgeo-3865"〉 DOI: https://doi.org/10.23689/fidgeo-3865〈/a〉〈br〉 〈br〉〈/br〉 〈b〉How well does known seismicity between the Lower Rhine Graben and southern North Sea reflect future earthquake activity? 〈/b〉 〈br〉 〈i〉Thierry Camelbeeck, Kris Vanneste, Koen Verbeeck, David Garcia-Moreno, Koen Van Noten and Thomas Lecocq 〈/i〉 〈br〉〈a href="https://doi.org/10.23689/fidgeo-3866"〉 DOI: https://doi.org/10.23689/fidgeo-3866〈/a〉〈br〉 〈br〉〈/br〉 〈b〉The Paleoseismic Database of Germany and Adjacent Regions PalSeisDB v1.0〈/b〉〈br〉 〈i〉Jochen Hürtgen, Klaus Reicherter, Thomas Spies, Claudia Geisler and Jörg Schlittenhardt 〈/i〉 〈br〉〈a href="https://doi.org/10.23689/fidgeo-3867"〉 DOI: https://doi.org/10.23689/fidgeo-3867〈/a〉〈br〉
    Description: research
    Keywords: ddc:551.22 ; ddc:554.3 ; ddc:550
    Language: English
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    DEAL Verträge mit Springer Nature und Wiley – DEAL contracts with Springer Nature and Wiley (2020)
    Details
    Publication Date: 2022-12-08
    Description: Hübner, A. (2020d) DEAL Verträge mit Springer Nature und Wiley – DEAL contracts with Springer Nature and Wiley. Handout für die Geowissenschaftlichen Fachgesellschaften
    Description: DFG
    Description: GFZ Potsdam
    Description: poster
    Keywords: DEAL
    Language: English
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    DEAL-contracts with publishers: what´s new for researchers? (2020)
    Details
    Publication Date: 2022-11-29
    Description: The German Rectors' Conference was commissioned by the Alliance of German Science Organisations to initiate the DEAL project in order to conclude nationwide licence agreements for the entire portfolio of electronic journals (e-journals) of major science publishers. DEAL negotiates on behalf of almost all German academic institutions such as universities, universities of applied sciences, research institutions, state and regional libraries. The aims of project DEAL are: A) The DEAL institutions have permanent full-text access to the entire title portfolio (e-journals) of the selected publishers. B) All publications by authors from German institutions are automatically made open access (CC-BY, incl. peer review). C) Appropriate pricing according to a simple, future-oriented calculation model based on the volume of publications. The second contract of project DEAL, the contract with the publisher Springer Nature, was signed on 8 January 2020. This contract differs only in a few details from the contract with the publisher Wiley, which was signed on 15 January 2019. The administrative/technical implementation with Wiley has been completed so that authors can publish Open Access under DEAL conditions. The implementation with Springer Nature will be realised within the coming months. The poster summarises the major changes for authors when publishing in Springer Nature and in Wiley journals, provides guidance on how to use the Wiley web-based "Author Dashboard" and explains how the national DEAL agreements differ from the previous "hybrid" publishing in closed access journals.
    Description: poster
    Keywords: open access ; open science
    Language: English
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    How to publish Open Access in the earth sciences (2020)
    Details
    Publication Date: 2022-11-29
    Description: Open Access to scientific literature and research data has significant advantages for researchers as well as for society as a whole. Researchers might gain from increased citation rates and from higher visibility of their research outputs, while researchers as well as the public benefit from a better accessibility of scientific literature and data. Increasingly, funding organisations such as the European Commission in the context of Horizon 2020-funded projects or the 16 national and international members of “Plan S” demand that publications that result from projects funded by them are made openly accessible. The poster outlines the different ways of publishing text and data in Open Access. After a brief overview of reasons for publishing Open Access, it points out different routes for publishing texts in Open Access (in Open-Access-Journals or self-archiving) and major aspects for FAIR and open data publication.
    Description: poster
    Keywords: open science ; Open Access
    Language: English
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  • 44
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    Earth science and biodiversity journals can improve support for data publication (2020)
    Details
    Publication Date: 2022-11-29
    Description: This study reviews research data policies and author instructions of 31 journals from the Earth sciences and from biodiversity that are published by German learned societies or research institutions. The statements on data publishing of the journal´s data policies/author guidelines were matched to 14 defined features of journal research data policies. A brief discussion on quality of data policies is presented to raise awareness of German learned societies/research institutions and to guide them towards improved data policies of their journals.
    Description: http://doi.org/10.5281/zenodo.4009195
    Description: research
    Keywords: research data policy journal FAIR Earth Sciences
    Language: English
    Type: doc-type:article , submittedVersion
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  • 45
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    How to publish Open Access in the earth sciences (2020)
    Details
    Publication Date: 2022-11-29
    Description: Open Access to scientific literature and research data has significant advantages for researchers as well as for society as a whole. Researchers might gain from increased citation rates and from higher visibility of their research outputs, while researchers as well as the public benefit from a better accessibility of scientific literature and data. Increasingly, funding organisations such as the European Commission in the context of Horizon 2020-funded projects or the 16 national and international members of “Plan S” demand that publications that result from projects funded by them are made openly accessible. The poster outlines the different ways of publishing text and data in Open Access. After a brief overview of reasons for publishing Open Access, it points out different routes for publishing texts in Open Access (in Open-Access-Journals or self-archiving) and major aspects for FAIR and open data publication.
    Description: DFG, GFZ Potsdam
    Description: poster
    Keywords: ddc:550 ; Open Access
    Language: English
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    Determination of Cu, Zn, Ga, Ag, Cd, In, Sn and Tl in Geological Reference Materials and Chondrites by Isotope Dilution ICP-MS (2020)
    Details
    Publication Date: 2022-11-28
    Description: Mass fractions of Cu, Zn, Ga, Ag, Cd, In, Sn and Tl were determined via isotope dilution quadrupole ICP-MS in twenty-one geological reference materials (RMs) and the carbonaceous chondrites Orgueil (CI1), Murchison (CM2) and Allende (CV3). The RMs comprise basaltic/mafic (BCR-2, BE-N, BHVO-1, BHVO-2, BIR-1, BRP-1, JB-2, OKUM, W-2, WS-E), intermediate/felsic (AGV-2, G-2, JA-2, RGM-1), ultramafic (DTS-2b, MUH-1, PCC-1, UB-N) and sedimentary (MAG-1, OU-6) rocks. Pressure digestion was applied for nonbasaltic samples to ensure effective sample digestion. For basaltic RMs, hot plate digestion was found to be sufficient for a quantitative recovery of the target elements. To minimise interferences and increase ion beam intensities during isotope ratio analyses by ICP-MS, separation of the target elements was carried out from single sample aliquots using a novel anion exchange procedure. The intermediate precision (2s) estimated from two to four replicate analyses was usually 〈 4% and results are in agreement with literature data, where available. Especially for Ag and Tl, the intermediate precision was compromised, likely due to low ion beam intensities and, hence, higher background and blank contributions. For ultramafic RMs, nugget effects and incomplete digestion might compromise the intermediate precision. Results for the carbonaceous chondrites Orgueil (CI1), Murchison (CM2) and Allende (CV3) agree well with previously reported data.
    Keywords: ddc:551.9 ; isotope dilution ; chalcophile elements ; geological reference materials ; chondrites ; Q-ICP-MS
    Language: English
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    PISM-MOM_coupling: v1.0.2 (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: Code for coupling the Parallel Ice Sheet Model PISM with the Modular Ocean Model MOM
    Language: English
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    What is the anthropogenic contribution to climate change and to transgressing other planetary boundaries? (2020)
    In:  Climate Change: Scientific Bases and Questions for Debate
    Details
    Publication Date: 2022-03-21
    Language: English
    Type: info:eu-repo/semantics/bookPart
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    Robust predictors for seasonal Atlantic hurricane activity identified with causal effect networks (2020)
    In:  Weather and Climate Dynamics
    Details
    Publication Date: 2022-03-21
    Description: Atlantic hurricane activity varies substantially from year to year and so do the associated damages. Longer-term forecasting of hurricane risks is a key element to reduce damages and societal vulnerabilities by enabling targeted disaster preparedness and risk reduction measures. While the immediate synoptic drivers of tropical cyclone formation and intensification are increasingly well understood, precursors of hurricane activity on longer time-horizons are still not well established. Here we use a causal network-based algorithm to identify physically motivated late-spring precursors of seasonal 15Atlantic hurricane activity. Based on these precursors we construct seasonal forecast models with competitive skill compared to operational forecasts. We present a skillful model to forecast July to October cyclone activity at the beginning of April.Earlier seasonal hurricane forecasting provides a multi-month lead time to implement more effective disaster risk reduction measures. Our approach also highlights the potential of applying causal effects network analysis in seasonal forecasting
    Language: English
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    A safe operating space for New Zealand/Aotearoa (2020)
    Ministry for the Environment
    Details
    Publication Date: 2022-03-21
    Language: English
    Type: info:eu-repo/semantics/report
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    ISMIP6 Antarctica: a multi-model ensemble of the Antarctic ice sheet evolution over the 21st century (2020)
    In:  The Cryosphere
    Details
    Publication Date: 2022-03-21
    Description: Ice flow models of the Antarctic ice sheet are commonly used to simulate its future evolution in response to different climate scenarios and assess the mass loss that would contribute to future sea level rise. However, there is currently no consensus on estimates of the future mass balance of the ice sheet, primarily because of differences in the representation of physical processes, forcings employed and initial states of ice sheet models. This study presents results from ice flow model simulations from 13 international groups focusing on the evolution of the Antarctic ice sheet during the period 2015–2100 as part of the Ice Sheet Model Intercomparison for CMIP6 (ISMIP6). They are forced with outputs from a subset of models from the Coupled Model Intercomparison Project Phase 5 (CMIP5), representative of the spread in climate model results. Simulations of the Antarctic ice sheet contribution to sea level rise in response to increased warming during this period varies between −7.8 and 30.0 cm of sea level equivalent (SLE) under Representative Concentration Pathway (RCP) 8.5 scenario forcing. These numbers are relative to a control experiment with constant climate conditions and should therefore be added to the mass loss contribution under climate conditions similar to present-day conditions over the same period. The simulated evolution of the West Antarctic ice sheet varies widely among models, with an overall mass loss, up to 18.0 cm SLE, in response to changes in oceanic conditions. East Antarctica mass change varies between −6.1 and 8.3 cm SLE in the simulations, with a significant increase in surface mass balance outweighing the increased ice discharge under most RCP 8.5 scenario forcings. The inclusion of ice shelf collapse, here assumed to be caused by large amounts of liquid water ponding at the surface of ice shelves, yields an additional simulated mass loss of 28 mm compared to simulations without ice shelf collapse. The largest sources of uncertainty come from the climate forcing, the ocean-induced melt rates, the calibration of these melt rates based on oceanic conditions taken outside of ice shelf cavities and the ice sheet dynamic response to these oceanic changes. Results under RCP 2.6 scenario based on two CMIP5 climate models show an additional mass loss of 0 and 3 cm of SLE on average compared to simulations done under present-day conditions for the two CMIP5 forcings used and display limited mass gain in East Antarctica.
    Language: English
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    Reduced Complexity Model Intercomparison Project Phase 1: introduction and evaluation of global-mean temperature response (2020)
    In:  Geoscientific Model Development
    Details
    Publication Date: 2022-03-21
    Description: Reduced-complexity climate models (RCMs) are critical in the policy and decision making space, and are directly used within multiple Intergovernmental Panel on Climate Change (IPCC) reports to complement the results of more comprehensive Earth system models. To date, evaluation of RCMs has been limited to a few independent studies. Here we introduce a systematic evaluation of RCMs in the form of the Reduced Complexity Model Intercomparison Project (RCMIP). We expect RCMIP will extend over multiple phases, with Phase 1 being the first. In Phase 1, we focus on the RCMs' global-mean temperature responses, comparing them to observations, exploring the extent to which they emulate more complex models and considering how the relationship between temperature and cumulative emissions of CO2 varies across the RCMs. Our work uses experiments which mirror those found in the Coupled Model Intercomparison Project (CMIP), which focuses on complex Earth system and atmosphere–ocean general circulation models. Using both scenario-based and idealised experiments, we examine RCMs' global-mean temperature response under a range of forcings. We find that the RCMs can all reproduce the approximately 1 ∘C of warming since pre-industrial times, with varying representations of natural variability, volcanic eruptions and aerosols. We also find that RCMs can emulate the global-mean temperature response of CMIP models to within a root-mean-square error of 0.2 ∘C over a range of experiments. Furthermore, we find that, for the Representative Concentration Pathway (RCP) and Shared Socioeconomic Pathway (SSP)-based scenario pairs that share the same IPCC Fifth Assessment Report (AR5)-consistent stratospheric-adjusted radiative forcing, the RCMs indicate higher effective radiative forcings for the SSP-based scenarios and correspondingly higher temperatures when run with the same climate settings. In our idealised setup of RCMs with a climate sensitivity of 3 ∘C, the difference for the ssp585–rcp85 pair by 2100 is around 0.23∘C(±0.12 ∘C) due to a difference in effective radiative forcings between the two scenarios. Phase 1 demonstrates the utility of RCMIP's open-source infrastructure, paving the way for further phases of RCMIP to build on the research presented here and deepen our understanding of RCMs.
    Language: English
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    The impact of climate conditions on economic production. Evidence from a global panel of regions (2020)
    In:  Journal of Environmental Economics and Management
    Details
    Publication Date: 2022-03-21
    Description: We present a novel data set of subnational economic output, Gross Regional Product (GRP), for more than 1,500 regions in 77 countries that allows us to empirically estimate historic climate impacts at different time scales. Employing annual panel models, long-difference regressions and cross-sectional regressions, we identify effects on productivity levels and productivity growth. We do not find evidence for permanent growth rate impacts but we find robust evidence that temperature affects productivity levels considerably. An increase in global mean surface temperature by about 3.5C until the end of the century would reduce global output by 7-14% in 2100, with even higher damages in tropical and poor regions. Updating the DICE damage function with our estimates suggests that the social cost of carbon from temperature-induced productivity losses is on the order of 73-142$/tCO2 in 2020, rising to 92-181$/tCO2 in 2030. These numbers exclude non-market damages and damages from extreme weather events or sea-level rise.
    Language: English
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    Climate Risk Profile: Burkina Faso (2020)
    Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH
    In:  Climate Risk Profiles for Sub-Saharan Africa Series
    Details
    Publication Date: 2022-03-21
    Language: English
    Type: info:eu-repo/semantics/report
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    Data and code for publication "The role of history and strength of the oceanic forcing in sea level projections from Antarctica with the Parallel Ice Sheet Model" (Version v1) (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: Mass loss from the Antarctic Ice Sheet constitutes the largest uncertainty in projections of future sea level rise. Ocean-driven melting underneath the floating ice shelves and subsequent acceleration of the inland ice streams is the major reason for currently observed mass loss from Antarctica and is expected to become more important in the future. Here we show that for projections of future mass loss from the Antarctic Ice Sheet, it is essential (1) to better constrain the sensitivity of sub-shelf melt rates to ocean warming and (2) to include the historic trajectory of the ice sheet. In particular, we find that while the ice sheet response in simulations using the Parallel Ice Sheet Model is comparable to the median response of models in three Antarctic Ice Sheet Intercomparison projects – initMIP, LARMIP-2 and ISMIP6 – conducted with a range of ice sheet models, the projected 21st century sea level contribution differs significantly depending on these two factors. For the highest emission scenario RCP8.5, this leads to projected ice loss ranging from 1.4 to 4.0 cm of sea level equivalent in the ISMIP6 simulations where the sub-shelf melt sensitivity is comparably low, opposed to a likely range of 9.2 to 35.9 cm using the exact same initial setup, but emulated from the LARMIP-2 experiments with a higher melt sensitivity based on oceanographic studies. Furthermore, using two initial states, one with and one without a previous historic simulation from 1850 to 2014, we show that while differences between the ice sheet configurations in 2015 are marginal, the historic simulation increases the susceptibility of the ice sheet to ocean warming, thereby increasing mass loss from 2015 to 2100 by about 50 %. Our results emphasize that the uncertainty that arises from the forcing is of the same order of magnitude as the ice dynamic response for future sea level projections.
    Language: English
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    NDCmitiQ: a tool to quantify and analyse GHG mitigation targets (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: This software can be used to quantify emissions mitigation targets stated in the Nationally Determined Contributions (NDCs). The output includes national targets and emissions pathways and globally aggregated mitigated emissions pathways. Several quantification options are available, including, i.a., the five marker scenarios of the Shared Socioeconomic Pathways (SSPs) as baseline trajectories.
    Language: English
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    Research and innovation needs for clean energy supply (2020)
    DEEDS
    In:  DEEDS Policy Brief Energy
    Details
    Publication Date: 2022-03-21
    Language: English
    Type: info:eu-repo/semantics/report
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  • 58
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    The health-care sector's role in climate stabilisation [Correspondence] (2020)
    In:  The Lancet
    Details
    Publication Date: 2022-03-21
    Language: English
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  • 59
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    A multiplex, multi-timescale model approach for economic and frequency control in power grids (2020)
    In:  Chaos
    Details
    Publication Date: 2022-03-21
    Description: Power systems are subject to fundamental changes due to the increasing infeed of decentralized renewable energy sources and storage. The decentralized nature of the new actors in the system requires new concepts for structuring the power grid and achieving a wide range of control tasks ranging from seconds to days. Here, we introduce a multiplex dynamical network model covering all control timescales. Crucially, we combine a decentralized, self-organized low-level control and a smart grid layer of devices that can aggregate information from remote sources. The safety-critical task of frequency control is performed by the former and the economic objective of demand matching dispatch by the latter. Having both aspects present in the same model allows us to study the interaction between the layers. Remarkably, we find that adding communication in the form of aggregation does not improve the performance in the cases considered. Instead, the self-organized state of the system already contains the information required to learn the demand structure in the entire grid. The model introduced here is highly flexible and can accommodate a wide range of scenarios relevant to future power grids. We expect that it is especially useful in the context of low-energy microgrids with distributed generation. Highly decentralized power grids, possibly in the context of prosumer systems, require new concepts for their stable operation. We expect that both self-organized systems and intelligent devices with communication capability that can aggregate information from remote sources will play a central role. Here, we introduce a multiplex network model that combines both aspects and use it in a basic scenario and uncover surprising interactions between the layers.
    Language: English
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    In Relatively Peaceful Tanzania, Climate Change and Migration Can Spur Conflict (2020)
    Migration Policy Institute
    In:  Migration Information Source
    Details
    Publication Date: 2022-03-21
    Language: English
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    COPOD: Copula-Based Outlier Detection (2020)
    In:  IEEE International Conference on Data Mining (ICDM)
    Details
    Publication Date: 2022-03-21
    Description: Outlier detection refers to the identification of rare items that are deviant from the general data distribution. Existing approaches suffer from high computational complexity, low predictive capability, and limited interpretability. As a remedy, we present a novel outlier detection algorithm called COPOD, which is inspired by copulas for modeling multivariate data distribution. COPOD first constructs a empirical copula, and then uses it to predict tail probabilities of each given data point to determine its level of “extremeness”. Intuitively, we think of this as calculating an anomalous p-value. This makes COPOD both parameter-free, highly interpretable, and computationally efficient. In this work, we make three key contributions, 1) propose a novel, parameterfree outlier detection algorithm with both great performance and interpretability, 2) perform extensive experiments on 30 benchmark datasets to show that COPOD outperforms in most cases and is also one of the fastest algorithms, and 3) release an easy-to-use Python implementation for reproducibility.
    Language: English
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  • 62
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    Kreuzer, Moritz. (2020). Input Data as used in Kreuzer et al., Geoscientific Model Development publication (gmd-2020-230) (Version v1.0.2) (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: Input data for the PISM-MOM coupling framework as used in Kreuzer et al., Geoscientific Model Development publication (gmd-2020-230) [Coupling framework (1.0) for the ice sheet model PISM (1.1.1) and the ocean model MOM5 (5.1.0) via the ice-shelf cavity module PICO]
    Language: English
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  • 63
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    Advances in understanding and managing catastrophic ecosystem shifts in mediterranean ecosystems (2020)
    In:  Frontiers in Ecology and Evolution
    Details
    Publication Date: 2022-03-21
    Description: One of the most challenging issues in Mediterranean ecosystems to date has been to understand the emergence of discontinuous changes or catastrophic shifts. In the era of the 2030 Sustainable Development Goals, which encompass ideas around Land Degradation Neutrality, advancing this understanding has become even more critical and urgent. The aim of this paper is to synthesize insights into the drivers, processes and management of catastrophic shifts to highlight ways forward for the management of Mediterranean ecosystems. We use a multidisciplinary approach that extends beyond the typical single site, single scale, single approach studies in the current literature. We link applied and theoretical ecology at multiple scales with analyses and modeling of human–environment–climate relations and stakeholder engagement in six field sites in Mediterranean ecosystems to address three key questions: i) How do major degradation drivers affect ecosystem functioning and services in Mediterranean ecosystems? ii) What processes happen in the soil and vegetation during a catastrophic shift? iii) How can management of vulnerable ecosystems be optimized using these findings? Drawing together the findings from the use of different approaches allows us to address the whole pipeline of changes from drivers through to action. We highlight ways to assess ecosystem vulnerability that can help to prevent ecosystem shifts to undesirable states; identify cost-effective management measures that align with the vision and plans of land users; and evaluate the timing of these measures to enable optimization of their application before thresholds are reached. Such a multidisciplinary approach enables improved identification of early warning signals for discontinuous changes informing more timely and cost-effective management, allowing anticipation of, adaptation to, or even prevention of, undesirable catastrophic ecosystem shifts.
    Language: English
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    Results of the AbuMIP experiments: The Antarctic BUttressing Model Intercomparison Project (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: This archive provides the model result of the AbuMIP experiments: The Antarctic BUttressing Model Intercomparison Project.
    Language: English
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  • 65
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    The Energy Modeling Forum (EMF)-30 study on short-lived climate forcers: introduction and overview (2020)
    In:  Climatic Change
    Details
    Publication Date: 2022-03-21
    Description: The EMF-30 study uses a scenario approach in which a coordinated suite of scenarios is used to explore how stylized global policies to reduce SLCFs impacts emissions, concentrations, radiative forcing, and global temperature change. The SLCF reduction scenarios focus on methane across all sectors and black carbon from transportation and buildings. Greenhouse gas (GHG) mitigation scenarios are also considered, including the combination of GHG and SLCF mitigation.
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    Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP) (2020)
    In:  Journal of Glaciology
    Details
    Publication Date: 2022-03-21
    Description: Antarctica’s ice shelves modulate the grounded ice flow, and weakening of ice shelves due to climate forcing will decrease their ‘buttressing’ effect, causing a response in the grounded ice. While the processes governing ice-shelf weakening are complex, uncertainties in the response of the grounded ice sheet are also difficult to assess. The Antarctic BUttressing Model Intercomparison Project (ABUMIP) compares ice-sheet model responses to decrease in buttres-sing by investigating the ‘end-member’ scenario of total and sustained loss of ice shelves. Although unrealistic, this scenario enables gauging the sensitivity of an ensemble of 15 ice-sheet models to a total loss of buttressing, hence exhibiting the full potential of marine ice-sheet instability. All models predict that this scenario leads to multi-metre (1–12 m) sea-level rise over 500 years from present day. West Antarctic ice sheet collapse alone leads to a 1.91–5.08 m sea-level rise due to the marine ice-sheet instability. Mass loss rates are a strong func-tion of the sliding/friction law, with plastic laws cause a further destabilization of the Aurora and Wilkes Subglacial Basins, East Antarctica. Improvements to marine ice-sheet models have greatly reduced variability between modelled ice-sheet responses to extreme ice-shelf loss, e.g. compared to the SeaRISE assessments.
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    Performance evaluation of global hydrological models in six large Pan-Arctic watersheds (2020)
    In:  Climatic Change
    Details
    Publication Date: 2022-03-21
    Description: Global Water Models (GWMs), which include Global Hydrological, Land Surface, and Dynamic Global Vegetation Models, present valuable tools for quantifying climate change impacts on hydrological processes in the data scarce high latitudes. Here we performed a systematic model performance evaluation in six major Pan-Arctic watersheds for different hydrological indicators (monthly and seasonal discharge, extremes, trends (or lack of), and snow water equivalent (SWE)) via a novel Aggregated Performance Index (API) that is based on commonly used statistical evaluation metrics. The machine learning Boruta feature selection algorithm was used to evaluate the explanatory power of the API attributes. Our results show that the majority of the nine GWMs included in the study exhibit considerable difficulties in realistically representing Pan-Arctic hydrological processes. Average APIdischarge (monthly and seasonal discharge) over nine GWMs is 〉 50% only in the Kolyma basin (55%), as low as 30% in the Yukon basin and averaged over all watersheds APIdischarge is 43%. WATERGAP2 and MATSIRO present the highest (APIdischarge 〉 55%) while ORCHIDEE and JULES-W1 the lowest (APIdischarge ≤ 25%) performing GWMs over all watersheds. For the high and low flows, average APIextreme is 35% and 26%, respectively, and over six GWMs APISWE is 57%. The Boruta algorithm suggests that using different observation-based climate data sets does not influence the total score of the APIs in all watersheds. Ultimately, only satisfactory to good performing GWMs that effectively represent cold-region hydrological processes (including snow-related processes, permafrost) should be included in multi-model climate change impact assessments in Pan-Arctic watersheds.
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    Planetary boundaries: Challenges for science, civil society and politics (2020)
    Umweltbundesamt
    In:  UBA Texte
    Details
    Publication Date: 2022-03-21
    Description: The planetary boundaries concept was formulated in 2009 by an international research group led by Johan Rockström,and revised in 2015 by Will Steffen and colleagues(Rockström et al. 2009; Steffen et al. 2015b). The concept emerged against the background of the Anthropocene–a period of timeasso-ciated with rapidly growing environmental pressures,and increasing degradation and scarcity of global environmental resources,which intensifies risks for the stability and functioning of the Earth system. The human burden on the global environment and ecosystems has reached a level where sud-den non-linear systemic changes can no longer be ruled out. The UFOPLAN project 'Planetary Boundaries –Challengesfor Science, Civil Society and Politics' (FKZ 3714 100 0) addresses the challenge of operationalizing the planetary boundaries concept. The project analyzesthe requirements that the concept places on politics, science, civil society and business, with the aim ofinformingthe political implementation of the concept. In addition to cross-sectional papers that deal with topics of significance for various political processes (e.g., the potential for environmen-tal communication, risks associated withtransgressing boundaries and a methodology for operational-ization), political focus topics were addressed. The political focus topics addressquestionsof how the planetary boundaries conceptcan be applied to specific environmental policymakingareas (e.g.,the formulation of a national nitrogen strategy and the Integrated Environmental Programme 2030). Important next steps for the operationalization of the concept include thestronger inclusion of plane-tary boundaries in sustainability strategies and a reorientation of science fundingtoward the inte-grated development of the concept.
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    Dominant patterns of interaction between the tropics and mid-latitudes in boreal summer: causal relationships and the role of timescales (2020)
    In:  Weather and Climate Dynamics
    Details
    Publication Date: 2022-03-21
    Description: Abstract. Tropical convective activity represents a source of predictability for mid-latitude weather in the Northern Hemi-sphere. In winter, the El Niño–Southern Oscillation (ENSO) is the dominant source of predictability in the tropics and ex-tratropics, but its role in summer is much less pronounced and the exact teleconnection pathways are not well under-stood. Here, we assess how tropical convection interacts with mid-latitude summer circulation at different intra-seasonal timescales and how ENSO affects these interactions. First, we apply maximum covariance analysis (MCA) between tropical convective activity and mid-latitude geopotential height fields to identify the dominant modes of interaction. The first MCA mode connects the South Asian monsoon with the mid-latitude circumglobal teleconnection pattern. The second MCA mode connects the western North Pacific summer monsoon in the tropics with a wave-5 pattern centred over the North Pacific High in the mid-latitudes. We show that the MCA patterns are fairly insensitive to the selected intra-seasonal timescale from weekly to 4-weekly data. To study the potential causal interdependencies between these modes and with other atmospheric fields, we apply the causal discovery method PCMCI at different timescales. PCMCI extends standard correlation analysis by removing the con-founding effects of autocorrelation, indirect links and com-mon drivers. In general, there is a two-way causal interaction between the tropics and mid-latitudes, but the strength and sometimes sign of the causal link are timescale dependent. We introduce causal maps that show the regionally specific causal effect from each MCA mode. Those maps confirm the dominant patterns of interaction and in addition high-light specific mid-latitude regions that are most strongly con-nected to tropical convection. In general, the identified causal teleconnection patterns are only mildly affected by ENSO and the tropical mid-latitude linkages remain similar. Still, La Niña strengthens the South Asian monsoon generating a stronger response in the mid-latitudes, while during El Niño years the Pacific pattern is reinforced. This study paves the way for process-based validation of boreal summer telecon-nections in (sub-)seasonal forecast models and climate mod-els and therefore works towards improved sub-seasonal pre-dictions and climate projections.
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    Silicon isotopes in an EMIC's ocean: sensitivity to runoff, iron supply and climate (2020)
    In:  Paleoceanography and Paleoclimatology
    Details
    Publication Date: 2022-03-21
    Description: The isotopic composition of Si in biogenic silica (BSi), such as opal buried in the oceans' sediments, has changed over time. Paleo records suggest that the isotopic composition, described in terms of δ30Si, was generally much lower during glacial times than today. There is consensus that this variability is attributable to differing environmental conditions at the respective time of BSi production and sedimentation. The detailed links between environmental conditions and the isotopic composition of BSi in the sediments remain, however, poorly constrained. In this study, we explore the effects of a suite of offset boundary conditions during the LGM on the isotopic composition of BSi archived in sediments in an Earth System Model of intermediate complexity. Our model results suggest that a change in the isotopic composition of Si supply to the glacial ocean is sufficient to explain the observed overall low (er) glacial δ30Si in BSi. All other processes explored triggered model responses of either wrong sign or magnitude, or are inconsistent with a recent estimate of bottom water oxygenation in the Atlantic Sector of the Southern Ocean. Caveats, mainly associated with generic uncertainties in today's pelagic biogeochemical modules, remain.
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    PISM version as used in Garbe et al. (Nature, 2020) publication (Version v1.0-hysteresis-antarctica) (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: This is the PISM code version used for the Antarctic Ice Sheet hysteresis simulations published and discussed in Garbe, J., Albrecht, T., Levermann, A., Donges, J. F., and Winkelmann, R. The hysteresis of the Antarctic Ice Sheet. Nature 585(7826), 2020. The code is based on PISM release v1.0, but contains several improvements and modifications
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    Understanding different perspectives on economic growth and climate policy (2020)
    In:  Wiley Interdisciplinary Reviews: Climate Change
    Details
    Publication Date: 2022-03-21
    Description: Should economic growth continue in a world threatened by the prospect of catastrophic climate change? The scientific and public debate has brought forth a broad spectrum of views and narratives on this question, ranging from neoclassical economics to degrowth. We argue that different positions can be attributed to underlying differences in views on (a) factors that determine human well‐being, (b) the feasibility and desirability of economic growth, (c) appropriate intervention points, and (d) preferences about governance and policy options. For each of these dimensions, we propose points of agreement on which a consensus between conflicting positions might be achieved. From this basis, we distill a sustainability transition perspective that could act as a basis for a renewed debate on how to align human well‐being with environmental sustainability.
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    Comparing transformation pathways across major economies (2020)
    In:  Climatic Change
    Details
    Publication Date: 2022-03-21
    Description: This paper explores the consequences of different policy assumptions and the derivation of globally consistent, national low-carbon development pathways for the seven largest greenhouse gas (GHG)–emitting countries (EU28 as a bloc) in the world, covering approximately 70% of global CO2 emissions, in line with their contributions to limiting global average temperature increase to well below 2 °C as compared with pre-industrial levels. We introduce the methodology for developing these pathways by initially discussing the process by which global integrated assessment model (IAM) teams interacted and derived boundary conditions in the form of carbon budgets for the different countries. Carbon budgets so derived for the 2011–2050 period were then used in eleven different national energy-economy models and IAMs for producing low-carbon pathways for the seven countries in line with a well below 2 °C world up to 2050. We present a comparative assessment of the resulting pathways and of the challenges and opportunities associated with them. Our results indicate quite different mitigation pathways for the different countries, shown by the way emission reductions are split between different sectors of their economies and technological alternatives.
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    Learning from urban form to predict building heights (2020)
    In:  PloS ONE
    Details
    Publication Date: 2022-03-21
    Description: Understanding cities as complex systems, sustainable urban planning depends on reliable high-resolution data, for example of the building stock to upscale region-wide retrofit policies. For some cities and regions, these data exist in detailed 3D models based on real-world measurements. However, they are still expensive to build and maintain, a significant challenge, especially for small and medium-sized cities that are home to the majority of the European population. New methods are needed to estimate relevant building stock characteristics reliably and cost-effectively. Here, we present a machine learning based method for predicting building heights, which is based only on open-access geospatial data on urban form, such as building footprints and street networks. The method allows to predict building heights for regions where no dedicated 3D models exist currently. We train our model using building data from four European countries (France, Italy, the Netherlands, and Germany) and find that the morphology of the urban fabric surrounding a given building is highly predictive of the height of the building. A test on the German state of Brandenburg shows that our model predicts building heights with an average error well below the typical floor height (about 2.5 m), without having access to training data from Germany. Furthermore, we show that even a small amount of local height data obtained by citizens substantially improves the prediction accuracy. Our results illustrate the possibility of predicting missing data on urban infrastructure; they also underline the value of open government data and volunteered geographic information for scientific applications, such as contextual but scalable strategies to mitigate climate change.
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    Coastal Challenges: Mainstreaming Climate Action in the G20 Development Agenda (2020)
    Global Solutions Initiative Foundation
    In:  G20 Insights: Policy Briefs
    Details
    Publication Date: 2022-03-21
    Description: This policy brief explores and provides a holistic view of the existing practices, issues, and opportunities for a sustainable coastal management initiative among the G20 member countries. Specifically, it highlights coastal disaster risk reduction and resilience strategies, along with the financial implications of public investment on the need of a proper assessment of the social return of adaptation projects, and on the avoided fiscal deadweight loss. The brief also discusses the importance of funding for development projects to reach mitigation targets and the need for an evaluation framework to improve the efficiency of these adaptation efforts. The policy brief suggests establishing an initiative within the G20 to address disaster risk reduction (G20- DRR) by providing a decision support system as well as a centralized dissemination platform for quality-controlled, transparent national climate impact assessments by fostering global collaboration between institutions, researchers, and experts.
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    Can the 2015 Paris Agreement on Climate Change Deliver 2°C? (2020)
    In:  Global Cooperation Research
    Details
    Publication Date: 2022-03-21
    Description: We know perfectly well that the combined effects of anthropogenic climate change and natural var-iability are very likely to lead to major, undesira-ble climate impacts for most citizens around the world in the not-so-distant future. To limit cli-mate impacts is essentially about weaning the world economy off greenhouse gases, adapting to those climate impacts that were not avoided, and compensating for what we cannot adapt to. All of these three components of climate policy are pursued under the auspices of the 1992 UN Frame-work Convention on Climate Change (UNFCCC), yet also by many countries, social movements, and forward-looking businesses alike (Luterbacher and Sprinz 2018).
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    COVID-19: a dashboard to rebuild with nature (2020)
    World Business Council for Sustainable Development
    Details
    Publication Date: 2022-03-21
    Language: English
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    Report on ICDP Deep Dust workshops: probing continental climate of the late Paleozoic icehouse–greenhouse transition and beyond (2020)
    In:  Scientific Drilling
    Details
    Publication Date: 2022-03-21
    Description: Chamberlin and Salisbury's assessment of the Permian a century ago captured the essence of the period: it is an interval of extremes yet one sufficiently recent to have affected a biosphere with near-modern complexity. The events of the Permian – the orogenic episodes, massive biospheric turnovers, both icehouse and greenhouse antitheses, and Mars-analog lithofacies – boggle the imagination and present us with great opportunities to explore Earth system behavior. The ICDP-funded workshops dubbed “Deep Dust,” held in Oklahoma (USA) in March 2019 (67 participants from nine countries) and Paris (France) in January 2020 (33 participants from eight countries), focused on clarifying the scientific drivers and key sites for coring continuous sections of Permian continental (loess, lacustrine, and associated) strata that preserve high-resolution records. Combined, the two workshops hosted a total of 91 participants representing 14 countries, with broad expertise. Discussions at Deep Dust 1.0 (USA) focused on the primary research questions of paleoclimate, paleoenvironments, and paleoecology of icehouse collapse and the run-up to the Great Dying and both the modern and Permian deep microbial biosphere. Auxiliary science topics included tectonics, induced seismicity, geothermal energy, and planetary science. Deep Dust 1.0 also addressed site selection as well as scientific approaches, logistical challenges, and broader impacts and included a mid-workshop field trip to view the Permian of Oklahoma. Deep Dust 2.0 focused specifically on honing the European target. The Anadarko Basin (Oklahoma) and Paris Basin (France) represent the most promising initial targets to capture complete or near-complete stratigraphic coverage through continental successions that serve as reference points for western and eastern equatorial Pangaea.
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    An overview of the Energy Modeling Forum 33rd study: assessing large-scale global bioenergy deployment for managing climate change (2020)
    In:  Climatic Change
    Details
    Publication Date: 2022-03-21
    Description: Previous studies have projected a significant role for bioenergy in decarbonizing the global economy and helping realize international climate goals such as limiting global average warming to 2 ˚C or 1.5 ˚C. However, with substantial variability in bioenergy results and significant concerns about potential environmental and social implications, greater transparency and dedicated assessment of the underlying modeling and results and more detailed understanding of the potential role of bioenergy are needed. Stanford University’s Energy Modeling Forum (EMF) initiated a 33rd study (EMF-33) to explore the viability of large-scale bioenergy as part of a comprehensive climate management strategy. This special issue presents the papers of the EMF-33 study—a multi-year inter-model comparison project designed to understand and assess global, long-run biomass supply and bioenergy deployment potentials and related uncertainties. Using a novel scenario design with independent biomass supply and bioenergy demand protocols, EMF-33 separately elucidates and explores the modeling of biomass feedstock supplies and bioenergy technologies and their deployment—revealing, comparing, and assessing the modeling that is suggesting that bioenergy could be a key climate containment strategy. This introduction provides an overview of the EMF-33 study design and the overview, thematic, and individual modeling team papers and types of insights that make up this special issue. By providing enhanced transparency and new detailed insights, we hope to inform policy dialogue about the potential role of bioenergy and facilitate new research.
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    UNFCCC country-submitted greenhouse gas emissions data until 2020-10-25 (2020)
    CERN / Zenodo
    Details
    Publication Date: 2022-03-21
    Description: Dataset containing all greenhouse gas emissions data submitted by countries under climate change convention (CRF data) as published by the UNFCCC secretariat at 2020-10-25
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    10 Insights on Climate Impacts and Peace (2020)
    adelphi research gemeinnützige GmbH
    Details
    Publication Date: 2022-03-21
    Description: Climate change is one of the most pressing political issues of our time. Science is uncovering the unprecedented nature and scale of its impacts on people, economies and ecosystems worldwide. One critical dimension of these impacts is their effect on international peace and security.This report summarises the state of knowledge regarding security risks related to climate change. To this end, it synthesises and contextualises the existing scientific evidence. It does not reflect all aspects of the debate that have emerged across social science but focuses on those that are particularly relevant at the political level.Climate change itself is rarely a direct cause of conflict. Yet, there is ample evidence that its effects exacerbate important drivers and contextual factors of conflict and fragility, thereby challenging the stability of states and societies.
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    Bridging the gap – the role of equitable low-carbon lifestyles (2020)
    In:  UNEP Emission Gap Report 2020
    Details
    Publication Date: 2022-03-21
    Language: English
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    Social Movements against Wind Power in Canada and Germany (2020)
    Routledge
    Details
    Publication Date: 2022-03-21
    Description: Taking a comparative case study approach between Canada and Germany, this book investigates the contrasting response of governments to anti-wind movements. Environmental social movements have been critical players for encouraging the shift towards increased use of renewable energy. However, social movements mobilizing against the installation of wind turbines have now become a major obstacle to their increased deployment. Andrea Bues draws on a cross-Atlantic comparative analysis to investigate the different contexts of contentious energy policy. Focusing on two sub-national forerunner regions in installed wind power capacity – Brandenburg and Ontario – Bues draws on social movement theory to explore the concept of discursive energy space and propose explanations as to why governments respond differently to social movements. Overall, Social Movements against Wind Power in Canada and Germany offers a novel conceptualization of discursive-institutional contexts of contentious energy politics and helps better understand protest against renewable energy policy. This book will be of great interest to students and scholars of renewable energy policy, sustainability and climate change politics, social movement studies and environmental sociology.
    Description: 1. Introduction: Renewable Energy Politics and Protest 2. Contentious Wind Energy and Context 3. Renewable Energy Policy and Politics in Canada and Germany 4. Larger Setbacks, Saving the Forests: The Anti-Wind Movement in Germany, Case Study Brandenburg 5. Preserving Health, Curbing Costs: The Anti-Wind Movement in Canada, Case Study Ontario 6. Contention in Context: Governmental Response to Social Movements 7. Conclusion: The Changing Winds of Discourses on Decarbonization
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    Prediction of future grassland vegetation cover fluctuation under climate change scenarios (2020)
    In:  Ecological Indicators
    Details
    Publication Date: 2022-07-14
    Description: Grasslands are subject to degradation in arid and semi-arid areas as the result of various pressures, including climate change. Therefore, spatial and temporal monitoring of vegetation cover fluctuation is needed for better understanding and management of natural resources to sustain livelihoods that depend on these grasslands. In this study, changes in vegetation cover were monitored over 1985-2015, using vegetation indices derived from the Landsat images in Chaharmahal-va-Bakhtiyari province, Iran. The percentage of vegetation cover was recorded from sampling plots in the study areas and vegetation indices were calculated from Landsat data over the study period. The relationship between vegetation cover and climate parameters (temperature (T) and precipitation (P)) was determined from precipitation maps, produced from spatial interpolation of weather stations data and temperature maps, produced by regression equation established between DEM-derived elevation and temperature. Then, a regression equation between climate variables and vegetation cover over a period of 30 years’ period was developed and applied on projected climatic variables for the 2050 under RCP2.6 and RCP8.5 scenarios. The Green Vegetation Index (GVI) was found to be the best index for estimation of vegetation cover from the correlation coefficient (r=0.79) and model RMSE (1.98). The GVI fluctuation was associated with the fluctuation in climate variables, and this was especially evident in especially dry years (1999, 2001 and 2012). From the difference between current and future vegetation cover maps, future vegetation cover change maps were produced and vulnerable areas most likely to be impacted by climate change were identified. The results predict that vegetation cover will be reduced under both scenarios, mostly in the eastern parts of the study region, while 5-25% of vegetation cover increases are projected for some areas in the western parts of the region. Further analysis showed that currently, oak forest covers large swaths of the western parts adjacent to grasslands, but forest degradation will lead to increase of grassland areas at the expense of oak forests. Overall, substantial loss of vegetation cover is predicted in the central parts and extends to the southern parts of the province. Loss of vegetation cover would pave the way to conversion of grassland to other non-productive cover types for pastoral systems. Appropriate management programs and adaptation strategies should be designed and implemented to reduce climate change impacts on grasslands in the identified vulnerable areas.
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    Research & Innovation Agenda (2020)
    DEEDS
    Details
    Publication Date: 2022-08-23
    Language: English
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    DESTRESS - soft stimulation treatments of geothermal reservoirs, Iceland (2020)
    GFZ Data Services
    Details
    Publication Date: 2022-03-27
    Description: Near Reykjavik/Iceland, a "soft stimulation” geothermal experiment was performed in the frame of the DESTRESS project in 2019. The installed seismic stations consist of short period, and borehole stations in and around Geldinganes, NE of Reykjavik. The task of this network is the monitoring of the seismic events in the area around the stimulation site. The installation started in late 2018 with 6 short period stations (Reykjavik Energy). Since July 2019 additional seismic stations were integrated as a small scale array on the island Geldinganes and additional short period stations. A borehole geophone chain was installed with 17 short period 3-component geophones with a vertical spacing of 10 meter in the depth interval 1040m to 1200 m. Waveform data are available from the GEOFON data centre, under network code YG, and are embargoed until January 2025.
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    BRAVOSEIS Onshore Seismic Array (2020)
    GFZ Data Services
    Details
    Publication Date: 2022-03-27
    Description: The Bransfield Strait is a seismically active extensional rift located between the Antarctic Peninsula and the South Shetland Islands. The Strait is partly located on continental crust including areas within the transition to seafloor spreading. The amphibious seismic network BRAVOSEIS is an international effort focused on the seismological research of submarine volcanoes and rift dynamics in the Bransfield Strait. This network is the onshore component of the entire network consisting of 15 broadband land stations deployed in the South Shetland Islands and Antarctic Peninsula between January 2018 and February 2020. The offshore components (network code ZX) include 9 broadband ocean bottom seismometers (OBS) across the Central Bransfield Basin and a group of 6 hydrophone moorings spanning the rift area of 200 x 100 km2, with inter-station distance of ~30 km. Additionally, a smaller offshore array consisting of 15 short-period OBSs with an aperture of 20 km and a narrow inter-station distance of ~4 km was deployed around the Orca submarine volcanic edifice south of King George Island. The data will be used to study the geodynamics of the Bransfield Strait and the evolution of the incipient rifting zone in the domain where extension has been suggested. Seismological methods will include earthquake location, source mechanism, surface wave analysis with ambient noise and earthquake data, receiver function and shear wave splitting. The results may shed light on the crustal structure and tectonic regime in the region and image the location and extent of magma accumulations related to submarine volcanic structures. Finally, the results should provide clues to assess the internal processes that occur in the submarine volcanoes of the area undergoing rifting. Waveform data are available from the GEOFON data centre, under network code 5M and are embargoed until Mar 2024. Acknowledgments: We thank all participants in the BRAVOSEIS 2018, 2019, and 2020 cruises, with a special acknowledgement to Capt. Jose Emilio Regodon and his crew at R/V Hesperides; Capt. Juan Carlos Hernandez and his crew at Sarmiento de Gamboa; Miki Ojeda, Ezequiel Gonzalez, and all the UTM staff involved in the planification and realization of the surveys. We also thank the Spanish Polar Committee and institutions involved in the management of the Spanish Antarctic campaigns and the development of the Spanish Polar Program. We are grateful for the help and support that we always find in the personnel of the Antarctic Bases, especially the Spanish Bases Juan Carlos I and Gabriel de Castilla.
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    SEISVOL - Seismic and Infrasound Networks to study the volcano Oldoinyo Lengai (2020)
    GFZ Data Services
    Details
    Publication Date: 2022-03-27
    Description: Oldoinyo Lengai in the North Tanzanian Divergence is the only active natrocarbonatite volcano world-wide and presents an important endmember magmatic system in a young rift segment of the East African Rift System. This volcano typically experiences long-duration episodes of natrocarbonatitic effusions with intermittent short-duration explosive eruptions. To better understand the role of the stress interactions and magma plumbing on the eruptions dynamics, this study aims to constrain the subsurface magmatic architecture of Oldoinyo Lengai, and a zone of ongoing seismicity and intrusive activity below the extinct 1 Ma-old Gelai shield volcano and active Naibor Soito monogenetic cone field. Waveform data are available from the GEOFON data centre, under network code 9J, and are embargoed until November 2025.
    Language: English
    Type: info:eu-repo/semantics/workingPaper
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    AlbACa – Albanian Earthquake Aftershock Campaign (2020)
    GFZ Data Services
    Details
    Publication Date: 2022-03-27
    Description: On 26th of November 2019 an Mw 6.4 earthquake ruptured near the port town of Durres, only 25 km from Tirana, the capital of Albania. The earthquake caused major damage and killed 51 people, making it the deadliest earthquake in 2019 worldwide. The mainshock was relatively deep (~25 km) and of thrust type. In December 2019, a Hazard and Risk team (HART) from German Center for Geosciences (GFZ), Karslruhe Institute of Technology (KIT) in cooperation with the Institute of Geosciences, Energy, Water and Environment (IGEWE) of the Polytechnic University of Tirana, Albania installed a 30-station seismic network in the epicentral region to record aftershocks. Stations were equipped with short-period (1 Hz or 4.5 Hz) 3-component seismometers and CUBE data loggers recording continuously 100 sps. Waveform data are available from the GEOFON data centre, under network code 9K under CC-BY 4.0 license and are embargoed until January 2024.
    Language: English
    Type: info:eu-repo/semantics/workingPaper
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  • 90
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    G-Chron 2019 – Round 1: An International Proficiency Test for U-Pb Geochronology Laboratories; Report on the 2019 Round of G-Chron based on Palaeozoic Zircon Rak-17 (Distribution: September 2019) (2020)
    GFZ German Research Centre for Geosciences
    In:  Scientific Technical Report STR - Data
    Details
    Publication Date: 2022-07-11
    Description: Proficiency testing (PT) is one of the few ways for an analytical laboratory to assess data quality under routine operating conditions. Here we report the results of Round 1 of the G-Chron PT programme, which is sponsored by the International Association of Geoanalysts. G-Chron is the first PT scheme devoted to the U-Th-Pb dating of mineral phases, primarily zircon, in geological materials. In this first round of G-Chron a total of 72 geochronology laboratories received the test material “Rak-17”, which previously had been characterized by seven well-established isotope dilution TIMS laboratories. A total of 63 of the PT participating laboratories reported data by the 15 December 2019 deadline. Here we both report and assess the measurement results submitted to this round. Our analysis provides a means for participating laboratories to assess their individual performance in relation to the isotope ages assigned, the experimental fitness-for-purpose criteria proposed by the scheme’s organisers and the results of similar laboratories participating in this round.
    Language: English
    Type: info:eu-repo/semantics/report
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    Extracting primary information through Si isotope analysis on a c. 2.4 Ga microbialite reef (2020)
    In:  Abstracts
    Details
    Publication Date: 2022-05-18
    Description: A c. 2.4 Ga microbialite reef complex within the Turee Creek Group (TCG) in Western Australia was deposited in the aftermath of the Great Oxidation Event (GOE). The diverse reef contains the first appearance of thrombolites, a complex deep water microfossil assemblage, and the oldest shallow water sedimentary phosphorous deposit [1, 2, 3]. Silica is present throughout the reef, as microcrystalline quartz in thrombolites, fine chert preserving the deep water microfossil assemblage, and as euhedral quartz crystals within phosphorous-rich peloids and pebbles [1, 2, 3]. Petrographic examination indicates some relatively early silica phases. Si isotope analysis will be used to evaluate the effect of re-equilibration by Proterozoic sea water and pore fluids on the cherts and quartz grains within this reef, to determine whether primary information (such as sea water temperature, pH, and salinity [4, 5]) can be retained. Here we present a wide range of recorded δ30Si from -2.8 to 4.1 ‰, which is typical of Precambrian cherts [4, 5, 6]. It was recently demonstrated that low temperature re-equilibration of Si isotopes between amorphous and aqueous states readily occurs in water with high ionic strength and that is supersaturated with Si [4]. Since these units were deposited before the advent of silicifers (e.g. diatoms), the ocean would have been supersaturated with silica [4, 5]. Re-equilbration is likely to have occurred, and it is possible that some isotope values reflect the sea water, or diagenesis, rather than the process that first precipitated the silica or the source of silica. By determing how much of an effect re-equilibration has had, we can try to determine what useful, primary information is retained and what the environment was like during the GOE.
    Language: English
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  • 92
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    IGMAS+: Interactive Gravity and Magnetic Application System (2020)
    GFZ Data services
    Details
    Publication Date: 2022-05-09
    Description: IGMAS+ is a software for 3-D modelling of potential fields and its derivatives under the condition of constraining data and independent information. It comes with tools for forward and inverse modelling. IGMAS+ has a long history starting 1988 and has seen continuous improvement since then with input by many contributors.
    Language: English
    Type: info:eu-repo/semantics/other
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    Omongwa Pan, Namibia (June 2015) - an EnMAP Preparatory Flight Campaign (2020)
    GFZ Data Services
    Details
    Publication Date: 2022-11-16
    Description: The dataset is composed of Neo HySpex (VNIR/SWIR) hyperspectral imagery acquired during airplane overflights on June 6th, 2015 covering the Omongwa Pan located in the South-West Kalahari, Namibia. The dataset includes three cloud-free flight lines with 408 spectral bands ranging from VNIR to SWIR wavelength regions (0.4-2.5 µm). The dataset also includes Level 2A EnMAP-like imagery simulated using the end-to-end Simulation tool (EeteS). The overall goal of the campaign was to acquire imagery over the Omongwa Pan and use the spectral reflectance for the analyses of surface sediments, specifically the mineralogical composition of exposed surface evaporites / salts on the airborne and spaceborne scale. The data are highly novel and can be used to test estimation of surface sediment properties in a highly saline and dynamic environment.
    Language: English
    Type: info:eu-repo/semantics/workingPaper
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    Omongwa Salt Pan, Namibia - An EnMAP Preparatory Flight Campaign (2020)
    GFZ Data Services
    In:  EnMAP Flight Campaigns Technical Report
    Details
    Publication Date: 2022-11-16
    Description: The dataset is composed of Neo HySpex (VNIR/SWIR) hyperspectral imagery acquired during the GFZ/DIMAP Geoarchive airborne campaign on June 6th, 2015 covering the Omongwa salt pan located in the South-West Kalahari, Namibia. The dataset includes 9 merged cloud-free flight lines with 408 spectral bands ranging from VNIR to SWIR wavelength regions (0.4-2.5 μm). The dataset also includes Level 2A EnMAP-like imagery simulated using the end-to-end Simulation tool (EeteS). The overall goal of the campaign was to test the potential of advanced optical hyperspectral remote sensing, or imaging spectroscopy, for the analysis of surface processes in the Omongwa salt pan and for the quantification of surface sediments. Specifically, the mineralogical composition of exposed evaporites such as halite, gypsum and calcite were investigated at the airborne and spaceborne scale, associated with comprehensive field campaigns, ich which spectral reflectance and ground-truth chemical data of field samples have been collected. The data are highly novel and can be used as testbeds for the development and validation of retrieval algorithms based on air- and space-borne hyperspectral imagery for estimation of surface sediment properties in a highly saline and dynamic environment.
    Language: English
    Type: info:eu-repo/semantics/report
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    Relaxation behavior of a laterally varying earth model in response to glacial loading (2020)
    In:  Abstracts
    Details
    Publication Date: 2022-12-05
    Description: Viscoelastic deformations of an earth structure in response to a time-varying surface load are analyzed in glacial isostatic adjustment (GIA). When solving this problem, aspects like flexure of the lithosphere and retarded response of mantle material become evident. Quantified are these by flexural rigidity and relaxation times. The concepts partly lose their relevance when changing from a 1D earth structure (only radial variations) to a 2D or a 3D earth structure (lateral variations). In regions like Fennoscandia and Laurentide, which are affected by GIA, lateral variations of the lithosphere and mantle structure are moderate and, so, the application of a 1D earth structure is widely accepted. But, also for these two regions one has to keep in mind that the respective 1D earth structures differ and that such an approximation mainly holds in the central part of the respective region. In contrast, lateral variations or a local structure of different viscosity have to be considered in areas like Patagonia, Antarctica or Alaska which is located above tectonic activity or covers a region with significant lateral changes in earth structure. But, already for the two former examples one has to keep in mind that the respective 1D earth structures inferred from GIA modelling differ between the two regions. Focusing on the relaxation behavior and the mantle-material transport, we discuss the effect of lateral variations on the deformation process. We will assess to which extent a 1D earth structure can represent lateral variability in structural features, and, at which point a 3D earth structure has to be considered. Such questions are of concern, when discussing GIA for geodetic applications as well as in earth system modeling as this study contributes to the climate modeling initiative Palmod.
    Language: English
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    Maturation characteristics of samples from the Georgina and Canning basins, as deduced from FT-ICR MS analysis. Geoscience Australia, Canberra. (2020)
    Geoscience Australia
    Details
    Publication Date: 2022-12-05
    Description: As part of the Onshore Energy Systems Group’s program, organic maturation levels were determined using polar compounds from potential source rocks from the Georgina and Canning basins. The Early Paleozoic organic matter is devoid of the vitrinite maceral so unsuitable of the measurement of the industry-standard vitrinite reflectance (Ro%) measurement.
    Language: English
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    Partition Coefficients of Trace Elements Between Carbonates and Melt and Suprasolidus Phase Relation of Ca-Mg-Carbonates at 6 Gpa (2020)
    In:  American Mineralogist
    Details
    Publication Date: 2022-07-19
    Description: By performing high pressure and temperature experiments, this study clarifies the suprasolidus phase relations of the nominally anhydrous Ca-Mg-CO3 system at 6 GPa showing that Ca-Mg-carbonates will (partially) melt for temperatures above ~1300 ℃. Further, partition coefficients for Li, Na, K, Mn, Fe, Sr, Ba, Pb, Nb, Y and rare earth elements between dolomite and dolomitic melt, Ca-magnesite and dolomitic melt and magnesite and dolomitic melt are established.
    Language: English
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    A magmatic barcode for the São Francisco Craton: Contextual in-situ SHRIMP U Pb baddeleyite and zircon dating of the Lavras, Pará de Minas and Formiga dyke swarms and implications for Columbia and Rodinia reconstructions (2020)
    In:  Lithos
    Details
    Publication Date: 2022-07-15
    Description: Eoarchean to Rhyacian crust is preserved in the São Francisco Craton of eastern Brazil. To position this crustal segment in paleocontinental reconstructions, precise, accurate and robust geochronological data are necessary, especially for the diverse regional-scale mafic dyke swarms that crosscut the cratonic basement. This geochronological database can then be used to construct a magmatic barcode and compare it to the barcode of other cratons around the world, in search of similarities that might help to position these pieces in the paleocontinental puzzles. New Usingle bondPb SHRIMP contextual in-situ (thin section) dating of baddeleyite and zircon from six samples of three different dyke swarms in the southern São Francisco Craton, in addition to novel lithogeochemical and Ndsingle bondSr isotopic data, allow to pinpoint dyke emplacement at ca. 2.55 Ga (Lavras I swarm; εNd(t) = −6 to +2; TDM not calculable), ca. 1.8–1.7 Ga (Pará de Minas I and II dyke swarms; εNd(t) = −10 to −5; TDM = 2.5–3.0 Ga) and at ca. 900 Ma (Formiga dyke swarm; εNd(t) = −7 to 0; TDM = 1.4–2.3 Ga). The new geochronological data suggest a link between the regional dyke swarms and extensional stresses during the onset of crustal rifting related to the evolution of the Minas, Espinhaço and Macaúbas basins, respectively. A barcode comparison shows strong similarity between the São Francisco and North China cratons (Lavras-Taipingzhai/Naoyumen swarms, Pará de Minas-Taihang/Miyun swarms, Formiga/Pedro Lessa-Sariwon/Dashigou swarms; and possible correlations of the poorly dated 2.2–2.0 Ga Paraopeba swarm with similar aged swarms in North China), suggesting proximity of those two cratonic blocks, whether they were part or not of Proterozoic paleocontinents such as Columbia and Rodinia. The novel geochronological data support previous interpretations based on paleomagnetic data and provide further refinements of the geochronological record of the southern hemisphere cratonic blocks, allowing for better-tied global correlations.
    Language: English
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    Reassessing zircon-monazite thermometry with thermodynamic modelling: insights from the Georgetown igneous complex, NE Australia (2020)
    In:  Contributions to Mineralogy and Petrology
    Details
    Publication Date: 2022-07-15
    Description: Accessory mineral thermometry and thermodynamic modelling are fundamental tools for constraining petrogenetic models of granite magmatism. U–Pb geochronology on zircon and monazite from S-type granites emplaced within a semi-continuous, whole-crust section in the Georgetown Inlier (GTI), NE Australia, indicates synchronous crystallisation at 1550 Ma. Zircon saturation temperature (Tzr) and titanium-in-zircon thermometry (T(Ti–zr)) estimate magma temperatures of ~ 795 ± 41 °C (Tzr) and ~ 845 ± 46 °C (T(Ti-zr)) in the deep crust, ~ 735 ± 30 °C (Tzr) and ~ 785 ± 30 °C (T(Ti-zr)) in the middle crust, and ~ 796 ± 45 °C (Tzr) and ~ 850 ± 40 °C (T(Ti-zr)) in the upper crust. The differing averages reflect ambient temperature conditions (Tzr) within the magma chamber, whereas the higher T(Ti-zr) values represent peak conditions of hotter melt injections. Assuming thermal equilibrium through the crust and adiabatic ascent, shallower magmas contained 4 wt% H2O, whereas deeper melts contained 7 wt% H2O. Using these H2O contents, monazite saturation temperature (Tmz) estimates agree with Tzr values. Thermodynamic modelling indicates that plagioclase, garnet and biotite were restitic phases, and that compositional variation in the GTI suites resulted from entrainment of these minerals in silicic (74–76 wt% SiO2) melts. At inferred emplacement P–T conditions of 5 kbar and 730 °C, additional H2O is required to produce sufficient melt with compositions similar to the GTI granites. Drier and hotter magmas required additional heat to raise adiabatically to upper-crustal levels. S-type granites are low-T mushes of melt and residual phases that stall and equilibrate in the middle crust, suggesting that discussions on the unreliability of zircon-based thermometers should be modulated.
    Language: English
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    Fluid mixing leads to main-stage cassiterite precipitation at the Xiling Sn polymetallic deposit, SE China: evidence from fluid inclusions and multiple stable isotopes (H–O–S) (2020)
    In:  Mineralium Deposita
    Details
    Publication Date: 2022-09-08
    Description: The Xiling Sn deposit in eastern Guangdong Province comprises the Fengdishan Sn and the Saozhoudi Sn–Pb–Zn ore blocks and has long been regarded as a volcanic–subvolcanic system related to Sn polymetallic mineralization. Here, we present fluid inclusion microthermometric data from different ore stages and H–O–S isotope data of hydrothermal minerals to constrain the genesis of the Xiling deposit. Fluid inclusions from stage I have Th values from ~ 340 to 420 °C and salinities from ~ 15 to 17 wt% NaCl equivalent, while homogenization temperatures of fluid inclusions from stages II to V range from ~ 150 to 320 °C, and salinities range between ~ 1 and 6 wt% equivalent. The oxygen and hydrogen isotopic composition of quartz and cassiterite (δDfluid − 65‰; δ¹⁸Ofluid 3.6 to 6.3‰) suggest that the ore-forming fluids from stage I have a distinct magmatic signature, whereas those from stage II through stage IV (δDfluid from − 80 to − 49‰; δ¹⁸Ofluid from − 3.7 to 2.5‰) show characteristics of mixing between meteoric and magmatic fluids. Moreover, δ³⁴S values for sulfides from the Fengdishan ore block have a narrow range of 0.6 to 2.5‰ with a mean close to 0‰, consistent with a magmatic sulfur source. By contrast, δ³⁴S values for ore minerals from the Saozhoudi ore block range from 3.4 to 11.5‰, suggesting involvement of a sedimentary sulfur source. In addition, a previous geochronological study has shown that the volcanic–subvolcanic host rocks have an age of 160–170 Ma, while the Sn polymetallic mineralization has an age of about 145 Ma. Our data support a model of mixing of magmatic brine from a hidden granitic intrusion with meteoric water. The S isotope data and the observed temperature gradient of the fluid system suggest that the Sn mineralization is developed in the central part of the ore system, while the Sn–Pb–Zn and Pb–Zn mineralization occurs in the distal part. This finding might have important implications for exploration in the region.
    Language: English
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