Increasing River Temperatures Trigger Arctic Sea-Ice Decline and Atmospheric Warming

Science Advances, November 6
Warmer river discharge waters into the Arctic Ocean contributed up to 10% of regional sea-ice loss from Arctic continental shelves between 1980 and 2015. Particularly notable, this injection of warm freshwater also increased sea-ice breakup in late spring and early summer. The decline of Arctic sea-ice causes a warmer Arctic Ocean during the summer, increasing atmospheric warming. These findings show that rising river temperatures nearly double the impact of river discharge waters on the Arctic region.

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