Sibérie et libération de méthane
▻http://siberiantimes.com/science/casestudy/news/n0905-7000-underground-gas-bubbles-poised-to-explode-in-arctic
Methane exceeded the norm 1,000 times, while carbon dioxide was 25 times above the norm. Initial measurements had suggest methane levels 200 times above usual levels.
Some 15 examples of this swaying Siberian ground were revealed last July on Bely Island, a polar bear outpost some 750 km north of the Arctic Circle in the Kara Sea. One research team account at the scene said: ‘As we took off a layer of grass and soil, a fountain of gas erupted.’