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Synchronous climate changes in Antarctica and the North Atlantic

January 1, 1998

Central Greenland ice cores provide evidence of abrupt changes in climate over the past 100,000 years. Many of these changes have also been identified in sedimentary and geochemical signatures in deep-sea sediment cores from the North Atlantic, confirming the link between millennial-scale climate variability and ocean thermohaline circulation. It is shown here that two of the most prominent North Atlantic events - the rapid warming that makes the end of the last glacial period and the Bolling/Allerod-Younger Dryas oscillation - are also recorded in an ice core from Taylor Dome, in the western Ross Sea sector of Antarctica. This result contrasts with evidence from ice cores in other regions of Antarctica, which show an asynchronous response between the Northern and Southern Hemispheres.

Citation Information

Publication Year 1998
Title Synchronous climate changes in Antarctica and the North Atlantic
DOI 10.1126/science.282.5386.92
Authors E.J. Steig, E.J. Brook, J.W.C. White, C.M. Sucher, M.L. Bender, S.J. Lehman, D. L. Morse, E.D. Waddington, G.D. Clow
Publication Type Article
Publication Subtype Journal Article
Series Title Science
Series Number
Index ID 70020113
Record Source USGS Publications Warehouse
USGS Organization