Near-Synchronous Interhemispheric Termination of the Last Glacial Maximum in Mid-Latitudes
Isotopic records from polar ice cores imply globally asynchronous warming at the end of the last glaciation. However, 10 Be exposure dates show that large-scale retreat of mid-latitude Last Glacial Maximum glaciers commenced at about the same time in both hemispheres. The timing of retreat is consis...
Published in: | Science |
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Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
2006
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Subjects: | |
Online Access: | http://dx.doi.org/10.1126/science.1122872 https://www.science.org/doi/pdf/10.1126/science.1122872 |
Summary: | Isotopic records from polar ice cores imply globally asynchronous warming at the end of the last glaciation. However, 10 Be exposure dates show that large-scale retreat of mid-latitude Last Glacial Maximum glaciers commenced at about the same time in both hemispheres. The timing of retreat is consistent with the onset of temperature and atmospheric CO 2 increases in Antarctic ice cores. We suggest that a global trend of rising summer temperatures at the end of the Last Glacial Maximum was obscured in North Atlantic regions by hypercold winters associated with unusually extensive winter sea ice. |
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