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polar bears

Photo of a polar bear and two cubs traversing a field of snow and ice
Posted inNews

Glacial Ice Offers Polar Bears a Precarious Climate Refuge

by Elise Cutts 9 December 202222 March 2023

An isolated polar bear population in southeastern Greenland survives in fjords, despite spotty sea ice. But this pocket of bears is not a sign of how the species could be saved.

A polar bear sits on its haunches on sea ice in the east Greenland Sea.
Posted inNews

Polar Bears to Vanish from Most of the Arctic This Century

Cheryl Katz, Science Writer by Cheryl Katz 29 October 202029 April 2022

A “timelines of risk” model shows when and where population collapse begins as sea ice wanes in our warming future.

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Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

16 June 202512 June 2025
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