All across the Arctic, frozen soil is thawing out. A lot of stuff is buried there – plants and animals that lived more than 10,000 years ago. This episode from Threshold asks what happens when a Paleolithic bison bone starts to decompose for the first time? And what does that have to do with climate change?




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Arctic Lakes and Methane
This short video from NASA explores how Arctic lakes could soon be a major source of atmospheric methane.

New data from two Arctic sites suggest some surface layers are no longer freezing. Find out what that means for people experiencing it first-hand and how it could accelerate climate change in this article from National Geographic.




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