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Sea-level rise due to polar ice-sheet mass loss during past warm periods.

Dutton, A. and Carlson, A.E. and Long, A.J. and Milne, G.A. and Clark, P.U. and DeConto, R. and Horton, B.P. and Rahmstorf, S. and Raymo, M.E. (2015) 'Sea-level rise due to polar ice-sheet mass loss during past warm periods.', Science., 349 (6244). aaa4019.


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.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Publisher statement:"This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 10 Jul 2015, Vol. 349, Issue 6244, DOI: 10.1126/science.aaa4019.
Date accepted:02 September 2015
Date deposited:24 March 2016
Date of first online publication:09 July 2015
Date first made open access:No date available

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