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  • John Wiley & Sons, Inc.  (30)
  • Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie  (20)
  • Englisch  (50)
  • 2020-2023  (50)
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  • 1
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    Testing the use of the silica deposition fluorescent probe PDMPO to estimate in situ growth rates of diatoms (2022)
    John Wiley & Sons, Inc. | Hoboken, USA
    Details
    Publikationsdatum: 2022-12-07
    Beschreibung: The fluorophore [2‐(4‐pyridyl)‐5{[4‐dimethylaminoethyl‐aminocarbamoyl‐methoxy]phenyl}oxazole], in short PDMPO, is incorporated in newly polymerized silica in diatom frustules and thereby provides a tool to estimate Si uptake, study diatom cell cycles but also determine mortality‐independent abundance‐based species specific‐growth rates in cultures and natural assemblages. In this study, the theoretical framework and applicability of the PDMPO staining technique to estimate diatom species specific‐growth rates were investigated. Three common polar diatom species, Pseudo‐nitzschia subcurvata, Chaetoceros simplex, and Thalassiosira sp., chosen in order to cover a broad range of species specific frustule and life‐cycle characteristics, were incubated over 24 h in control (no PDMPO) and with 0.125 and 0.6 μM PDMPO addition, respectively. Results indicate that specific‐growth rates of the species tested were not affected in both treatments with PDMPO addition. The specific‐growth rate estimates based on the PDMPO staining patterns (μPDMPO) were comparable and more robust than growth rates estimated from the changes in cell concentrations (μcc). This technique also allowed to investigate and highlight the importance of the illumination cycle (light and dark phases) on cell division in diatoms.
    Schlagwort(e): ddc:579.8 ; diatom frustules ; Si uptake ; growth rate estimation
    Sprache: Englisch
    Materialart: doc-type:article
    Standort Signatur Erwartet Verfügbarkeit
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    CITATION GEO-LEO
  • 2
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    Data ecosystems for the sustainability transformation : a study commissioned by Huawei Technologies Deutschland GmbH (2022)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publikationsdatum: 2022-11-11
    Beschreibung: In the coming years, we must set a course that will allow as to protect our climate, reduce resource consumption, and preserve biodiversity. A profound ecological system change is on the horizon in all central areas of action of the economy and society, or transformation arenas. Digitalisation is a prerequisite for the success in this change and will impact these arenas at multiple levels: Digital technologies and applications will make it possible to improve current procedures, processes, and structures (Improve) and help us take the first steps towards new business models and frameworks (Convert). Despite this, digitalisation itself must be effective enough to facilitate a complete ecological restructuring of our society and lives to achieve more far-reaching economic transformation and value creation (Transform). The ability to obtain, link, and use data is a basic prerequisite for tapping into the potential of digitisation for sustainability transformation. However, data is not a homogeneous raw material. Data only gains value when we know the context in which it was collected and when we can use it for a specific purpose. The discussion on what structures and prerequisites are necessary for the system-changing use of data has only just begun. This study was conducted to serve as a starting point for this discussion as it describes the opportunities and prerequisites for a data-based sustainability transformation. This study focuses on environmental data, data from plants, machines, infrastructure, and IoT products. Our task will be to increase the use this data for systemic solutions (system innovation) within transformation arenas where different stakeholders are working together to initiate infrastructure, value chain, and business model transformation.
    Schlagwort(e): ddc:600
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: report , doc-type:report
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 3
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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
    Publikationsdatum: 2022-11-10
    Beschreibung: 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.
    Schlagwort(e): ddc:320
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: masterthesis , doc-type:masterThesis
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 4
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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
    Publikationsdatum: 2022-11-10
    Beschreibung: 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.
    Schlagwort(e): ddc:320
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: masterthesis , doc-type:masterThesis
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 5
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    Overcoming information asymmetry in the plastics value chain with digital product passports : how decentralised identifiers and verifiable credentials can enable a circular economy for plastics (2022)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publikationsdatum: 2022-11-10
    Beschreibung: This paper analyses the potential of digital information technology to enable the reliable provision of product information along the plastics supply chain. The authors investigate the possible contribution of a product passport equipped with decentralised identifiers and verifiable credentials to overcome information deficits and information asymmetry in the circular plastics economy. Through this, high-quality plastics recycling could be enabled on a larger scale than currently possible.
    Schlagwort(e): ddc:600
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: workingpaper , doc-type:workingPaper
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 6
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    Current approaches to the digital product passport for a circular economy : an overview of projects and initiatives (2022)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publikationsdatum: 2022-11-10
    Beschreibung: A large number and variety of activities are being undertaken to introduce Digital Product Passports (DPPs). However, only a few DPPs have made it into practice so far, so there is some uncertainty about which impact DPPs will actually have. With this paper, we aim to provide a structured overview of the current development of DPPs. We provide insights of 76 current corporate, policy, and research activities that exist and their objectives. To allow for a structured assessment and discussion of the diverse approaches we defined 13 criteria for a comparable description, categorization and evaluation. We expect that this overview will not only encourage feedback and contributions from the DPP community, as well as valuable discussions with and among experts. It is also intended to help promote and facilitate the adoption of DPPs for the Circular Economy by facilitating collaborations and suggestions for ongoing activities.
    Schlagwort(e): ddc:320
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: workingpaper , doc-type:workingPaper
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Moving transport to net zero : what it takes to decarbonise the global transport sector (2022)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publikationsdatum: 2022-11-10
    Beschreibung: What is necessary to reach net zero emissions in the transport sector on a global level? To keep limiting global warming to 1.5° C within reach, the world has to decarbonise by mid-century, with every sector contributing as much as possible as soon as possible. This paper identifies what has to be done in road transport, aviation, and shipping to achieve net zero emission in the transport sector. For this purpose, it first sets the scene by providing an overview of the origins and impacts of the concept of net zero emissions in international climate policy as well as of the current state and future prospects of global transport emissions using currently available scenarios for low-emission and net zero transport. While for staying below 1.5° C, the basic approach to reducing transport emissions remains unchanged from what has been suggested in the past, the set, intensity and pace of actions as to shift fundamentally. Without first drastically reducing traffic volume and shifting transport demand to low-emission modes, reaching net zero transport will not be feasible: the amount of additional electricity required to fully electrify the sector with renewable energy is otherwise just too huge. After portraying key instruments for achieving net zero emissions in land transport, aviation, and shipping, this paper identifies key barriers for net zero transport. Based on this analysis, the authors recommend the following to be able to move transport to net zero: 1. Adapt Decarbonisation Strategies to Different Transport Sub-sectors 2. Prioritise and Significantly Increase Investment in Zero-/low-carbon Infrastructure 3. Massively Invest in the Development and Roll out of Zero-/low-emission Technologies 4. Focus on a Just Transition to Overcome Social and Political Barriers 5. Increase International Support and Cooperation
    Schlagwort(e): ddc:380
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: workingpaper , doc-type:workingPaper
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 8
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    Schools transitioning towards more climate awareness : a multi-level analysis of climate protection projects in the German school system (2022)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publikationsdatum: 2022-11-10
    Beschreibung: This thesis conceptualizes the school as a socio-technical system, in which change towards sustainable development and a transition towards more climate awareness are necessary. The multi-level perspective (MLP) framework is applied to the German school system and to climate protection projects (CPPs) as examples of niche activities integrating climate protection (CP) in the school. The thesis utilizes the analytical levels of the MLP (landscape, regime, and niche) and the concept of regulative, cognitive, and normative rules and addresses the question: How do actors in CPPs perceive drivers and barriers for transitioning towards more climate awareness in the German school system? The data were collected through expert interviews and analyzed by conducting a qualitative content analysis. The results show that the German school system is characterized by an inherent rigidity, deep-set normative role dynamics, and an unappreciated role of schools in society. They also highlight the importance of public pressure, strategic CP orientation, and hands-on approaches. CPPs can be a driving force for this in individual schools, but, overall, CP needs to be addressed more systematically in the school and more substantial efforts and reforms are necessary. Highly motivated niche actors play an important role and represent key drivers for such developments. This thesis reveals the complex and systemic nature of the challenges the German school system is faced with. It highlights the difficulties of integrating CP and the importance of substantial and transformative political action. The thesis demonstrates the crucial need to recognize the significance of schools and their actors for society and to integrate new methods and approaches into the school. This thesis also contributes to the body of literature on socio-technical systems and sustainability transitions. It offers an operationalization of the MLP and reveals strengths and limits as well as future research outlooks.
    Schlagwort(e): ddc:300
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: masterthesis , doc-type:masterThesis
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    Testing the usefulness of optical data for zooplankton long‐term monitoring: Taxonomic composition, abundance, biomass, and size spectra from ZooScan image analysis (2022)
    John Wiley & Sons, Inc. | Hoboken, USA
    Details
    Publikationsdatum: 2022-11-01
    Beschreibung: The pelagic ecosystem of the Arctic Ocean is threatened by severe changes such as the reduction in sea‐ice coverage and increased inflow of warmer Atlantic water. The latter is already altering the zooplankton community, highlighting the need for monitoring studies. It is therefore essential to accelerate the taxonomic identification to speed up sample analysis, and to expand the analysis to biomass and size assessments, providing data for modeling efforts. Our case study in Fram Strait illustrates that image‐based analyses with the ZooScan provide abundance data and taxonomic resolutions that are comparable to microscopic analyses and are suitable for zooplankton monitoring purposes in the Arctic. We also show that image analysis allows to differentiate developmental stages of the key species Calanus spp. and Metridia longa and, thus, to study their population dynamics. Our results emphasize that older preserved samples can be successfully reanalyzed with ZooScan. To explore the applicability of image parameters for calculating total mesozooplankton and Calanus spp. biomasses, we used (1) conversion factors (CFs) translating wet mass to dry mass (DM), and (2) length–mass (LM) relationships. For Calanus spp., the calculated biomass values yielded similar results as direct DM measurements. Total mesozooplankton biomass ranged between 1.6 and 15 (LM) or 2.4 and 21 (CF) g DM m², respectively, which corresponds to previous studies in Fram Strait. Ultimately, a normalized biomass size spectra analysis provides 1st insights into the mesozooplankton size structure at different depths, revealing steep slopes in the linear fit in communities influenced by Atlantic water inflow.
    Beschreibung: Bundesministerium für Bildung und Forschung http://dx.doi.org/10.13039/501100002347
    Schlagwort(e): ddc:577.7
    Sprache: Englisch
    Materialart: doc-type:article
    Standort Signatur Erwartet Verfügbarkeit
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    CITATION GEO-LEO
  • 10
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    Overview report on definition and concept of the circular economy in a European perspective : CICERONE D1.1 (2022)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publikationsdatum: 2022-10-24
    Beschreibung: On the basis of a literature research, this subtask develops a conceptional framework for a common understanding of CE within the project team and for the following work packages and tasks. After a brief introduction into the objectives and the context of a circular economy, a more elaborated look into the necessity of an explicit understanding of CE, the objectives, the spatial perspective of CE and the specific challenges within the CICERONE context will be done, in order to develop a basis for a common understanding within the project context. Circular economy can and has to be understood as an (eco-)innovation agenda. Therefore, the paper investigates the role policy has to play to support innovation for a CE transition, for creating the framework conditions and why CE has also to be build from the ground up. Finally, the paper looks from two perspectives at emerging trends and business models in a CE to sketch next steps towards the transition in a selection of central sectors. Conclusions are drawn on the basis of the insights gained by the preceding chapters.
    Schlagwort(e): ddc:600
    Repository-Name: Wuppertal Institut für Klima, Umwelt, Energie
    Sprache: Englisch
    Materialart: report , doc-type:report
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
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