Its not just large craters being caused by methane blowouts in the boreal regions of the globe (see http://bit.ly/29Qtoq7 for photos of the large craters that have appeared in Siberia), as revealed by this video recently published by the Siberian Times. A tract of grass and soil is underlain by a bubble of gas, making it float above the frozen matter beneath and bounce around like a trampoline. The research team found 15 such blisters in their survey of Belyy Island sits in the Arctic Ocean’s Kara Sea, a long running site for research into the changing climate up north.
As the world warms and the Arctic does so faster than any other region of the globe, to quote a geologist ‘you turn the fridge off up north and everything starts to rot’. Indeed it seems that the permafrost (a mixture of frozen water, earth and organic matter) is doing just that across Siberia, northern Canada and Alaska, releasing methane (a greenhouse gas much more potent than CO2) into the atmosphere. Climate researchers call this a positive feedback loop, warming begets release of greenhouse gas which begets further warming some years down the line. Source – Earth Story