Tuesday, May 17, 2022
HomeClimate411Claim: A groggy climate giant: subsea permafrost is still waking up after...

Claim: A groggy climate giant: subsea permafrost is still waking up after 12,000 years

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In the far north, the swelling Arctic Ocean inundated vast swaths of coastal tundra and steppe ecosystems. Though the ocean water was only a few degrees above freezing, it started to thaw the permafrost beneath it, exposing billions of tons of organic matter to microbial breakdown. The decomposing organic matter began producing CO2 and CH4, two of the most important greenhouse gases.

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