Widespread Sea-Ice Decline in Nordic Seas Associated with Past Extreme Greenland Warming

Proceedings of the National Academy of Sciences, November 9
During the last Ice Age (about 110 000 to 10 000 years ago), a number of abrupt climate warming events increased temperatures up to 16.5°C over the Greenland Ice Sheet over just a few decades. New analysis of ice and sediment cores shows that such events were tightly linked to rapid and widespread sea-ice decline in the Greenland, Barents and Norwegian Seas over a span of less than 250 years. The rate of warming during those events is analogous to current atmospheric warming and sea-ice retreat in the Arctic, which may foreshadow similar changes in the region and significantly impact lower latitude climate as well.


Compiled by Amy Imdieke.

By Amy Imdieke, Global Outreach Director, and Pam Pearson, Director of ICCI.
Published Nov. 17, 2020      Updated Jul. 12, 2022 3:22 pm