Huge Methane Leak from Arctic Seabed
Huge Methane Leak from Arctic Seabed
www.nsf.gov/news/mmg/media/images/methane1_h1.jpg
Science of Global Warming, Climate Change
A significant measurement with disturbing potential climate consequences has recently been announced. The measurement shows that a huge amount of methane is leaking from the Arctic seabed, coming up through melting permafrost. Methane is a greenhouse gas enormously more powerful than carbon dioxide. HERE and HERE is further commentary. Here is a video from University of Alaska Fairbanks scientist Natalia Shakhova explaining the situation. The above graphic is from the National Science Foundation.
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HERE is a new article on the subject, also found in the Arctic Portal:
Russian research team astonished after finding 'fountains' of methane bubbling to surface.
Dramatic and unprecedented plumes of methane – a greenhouse gas 20 times more potent than carbon dioxide – have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region.
Dr Semiletov's team published a study in 2010 estimating that the methane emissions from this region were about eight million tonnes a year, but the latest expedition suggests this is a significant underestimate of the phenomenon.
This is the graphic:
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