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Rapid coupling between ice volume and polar temperature over the past 150,000 years.

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  • Additional Information
    • Source:
      Publisher: Nature Publishing Group Country of Publication: England NLM ID: 0410462 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1476-4687 (Electronic) Linking ISSN: 00280836 NLM ISO Abbreviation: Nature Subsets: MEDLINE
    • Publication Information:
      Publication: Basingstoke : Nature Publishing Group
      Original Publication: London, Macmillan Journals ltd.
    • Subject Terms:
      Climate* ; Ice Cover*/chemistry ; Temperature*; Climate Change/*history; Animals ; Antarctic Regions ; Anthozoa ; Climate Change/statistics & numerical data ; Feedback ; Foraminifera/isolation & purification ; Geologic Sediments/analysis ; Greenland ; History, Ancient ; Indian Ocean ; Mediterranean Sea ; Plankton/isolation & purification ; Seawater/analysis ; Seawater/chemistry ; Time Factors
    • Abstract:
      Current global warming necessitates a detailed understanding of the relationships between climate and global ice volume. Highly resolved and continuous sea-level records are essential for quantifying ice-volume changes. However, an unbiased study of the timing of past ice-volume changes, relative to polar climate change, has so far been impossible because available sea-level records either were dated by using orbital tuning or ice-core timescales, or were discontinuous in time. Here we present an independent dating of a continuous, high-resolution sea-level record in millennial-scale detail throughout the past 150,000 years. We find that the timing of ice-volume fluctuations agrees well with that of variations in Antarctic climate and especially Greenland climate. Amplitudes of ice-volume fluctuations more closely match Antarctic (rather than Greenland) climate changes. Polar climate and ice-volume changes, and their rates of change, are found to covary within centennial response times. Finally, rates of sea-level rise reached at least 1.2 m per century during all major episodes of ice-volume reduction.
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    • Publication Date:
      Date Created: 20121116 Date Completed: 20130116 Latest Revision: 20211021
    • Publication Date:
      20231215
    • Accession Number:
      10.1038/nature11593
    • Accession Number:
      23151478