New Methane Plumes Rising from Arctic Ocean Discovered

Arctic melt ponds, July 2011. Photo courtesy of the NASA Goddard Space Flight Center.

Warmer temperatures and decreased sea ice cover in the Arctic Ocean are causing massive amounts of underwater methane to bubble to the surface, according to findings released at last week’s American Geophysical Union meeting. Methane is rising to the surface and into the atmosphere in large plumes or fountains, some as large as one kilometer in diameter. In a 10,000 square mile area off the northern coast of Siberia, Russian scientists discovered more than 100 methane plumes.

The research team has been monitoring the region for nearly two decades and was shocked by the latest results. The destabilization of underwater methane is considered one of the most significant climate change tipping points that will accelerate the rate of warming, as methane is at least 20 times more potent than carbon dioxide over a one hundred year period.


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New York Times
The Independent