Publication Date:
2015-07-15
Description:
Interdisciplinary studies of geologic archives have ushered in a new era of deciphering magnitudes, rates, and sources of sea-level rise from polar ice-sheet loss during past warm periods. Accounting for glacial isostatic processes helps to reconcile spatial variability in peak sea level during marine isotope stages 5e and 11, when the global mean reached 6 to 9 meters and 6 to 13 meters higher than present, respectively. Dynamic topography introduces large uncertainties on longer time scales, precluding robust sea-level estimates for intervals such as the Pliocene. Present climate is warming to a level associated with significant polar ice-sheet loss in the past. Here, we outline advances and challenges involved in constraining ice-sheet sensitivity to climate change with use of paleo-sea level records.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dutton, A -- Carlson, A E -- Long, A J -- Milne, G A -- Clark, P U -- DeConto, R -- Horton, B P -- Rahmstorf, S -- Raymo, M E -- New York, N.Y. -- Science. 2015 Jul 10;349(6244):aaa4019. doi: 10.1126/science.aaa4019. Epub 2015 Jul 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geological Sciences, University of Florida,Gainesville, FL 32611, USA. adutton@ufl.edu. ; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA. ; Department of Geography, Durham University, Durham, UK. ; Department of Earth Sciences, University of Ottawa, Ottawa, Canada. ; Department of Geosciences, University of Massachusetts, Amherst, MA 01003, USA. ; Department of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ 08901, USA. Earth Observatory of Singapore, Nanyang Technological University, Singapore, 639798. ; Potsdam Institute for Climate Impact Research, Potsdam, Germany. ; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26160951" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
,
Medicine
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Natural Sciences in General
,
Physics
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