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"When we think about forests and climate change, we tend to think about tropical forests. This is not without undue reason – some of the highest rates of deforestation are happening in Central and South America, Africa, and Asia Pacific. But one source of carbon, which happens to be the world’s largest terrestrial storehouse of carbon, has been mostly overlooked in international climate discussions to date. I’m talking, of course, about the boreal forest."

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Some scientists suspect that permafrost acts as a cap that protects hydrates from melting, particularly in the shallow Arctic seafloor, where the hydrates are found only a few tens of feet deep. The more that sea or lake waters thaw the permafrost below, the more likely this cap is to blow suddenly, releasing jets of methane up through the water and into the atmosphere.

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In April, Vladimir Putin and his ministers approved a new climate 'doctrine' – well, that's how they call these things in Moscow – which for the first time officially recognizes severe risks of global warming and calls for immediate action.

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Methane, a potent greenhouse gas, is leaking from the permafrost under the Siberian seabed, a researcher on an international expedition in the region told Swedish daily Dagens Nyheter on Saturday.
"The permafrost now has small holes. We have found elevated levels of methane above the water surface and even more in the water just below. It is obvious that the source is the seabed," Oerjan Gustafsson, the Swedish leader of the International Siberian Shelf Study, told the newspaper.

methane greenhouse gas permafrost global warming arctic