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. What happens when a Paleolithic bison bone starts to decompose for the first time? And what does that have to do with climate change?
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.