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Blogs
Greenhouse gas leaking from Arctic Ocean floor 9/16/09
10/11/2009 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Arctic Ocean, Climate Change, Marine Ecosystem Science, Methane Hydrates

By Noreen Parks, Environment & Science Technology

Scientists have reported the presence of previously unknown sources of methane—a greenhouse gas some 25 times more powerful than CO2 at trapping heat—bubbling up from the Arctic Ocean seafloor north of Norway. Gradual warming of a regional current has caused temperature-sensitive methane hydrate below the seabed to break down and discharge the gas, the researchers say.

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