Search results for ‘permafrost

‘Zombie’ greenhouse gas lurks in permafrost beneath the Arctic Ocean

Millions of tons of organic carbon and methane beneath the Arctic Ocean thaw out and ooze to the surface each year. And climate change could speed up this release of greenhouse gases, new research suggests.  The carbon tied up in organic matter and methane (a carbon atom bound to four hydrogen […]

Arctic permafrost now melting at levels not expected until 2090

Permafrost has begun thawing in the Canadian Arctic more than 70 years early because of climate change, according to new research. A “series of anomalously warm summers” has dramatically accelerated melting rates at three sites despite average annual ground temperatures remaining low. Ponds and hillocks have formed as a result. It had been thought that the permafrost […]