Thawing Permafrost Is Releasing Carbon, but Something Unexpected Happens
2 Articles
2 Articles
Thawing Permafrost Is Releasing Carbon, but Something Unexpected Happens
Much of the ancient carbon released from thawing Arctic permafrost appears to end up trapped in seabed sediments rather than quickly returning to the atmosphere. The Arctic’s frozen ground holds an enormous reservoir of organic carbon. As permafrost thaws and coastlines erode, some of that carbon is carried into the ocean, where microorganisms can break [...]
Researchers from the Alfred Wegener Institute and MARUM – Marine Environmental Sciences Center of the University of Bremen analyzed the dynamics of carbon released by the freezing of permafrost in the Arctic. The study revealed that a significant part of this carbon ends up stored in marine sediments, rather than returning quickly to the atmosphere. Carbon reservoir in the permafrost The Arctic permafrost contains about 1,300 gigatonnes of organ…
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