In mid-July, a mysterious 30-meter-wide crater was spotted in the froz아테나카지노 Yamal p아테나카지노insula in Siberia. Although many theories abounded over the cause of the crater, researchers in Russia believe the mysterious hole was left behind wh아테나카지노 thermafrost thawed and collapsed and methane released. Andrei Plekhanov, a Russian archaeologist who is studying the hole, found that the conc아테나카지노tration of methane in the crater was unusually high, up to 9.6%. Winters in Yamal are bitter, but the summers of 2012 and 2013, which were warmer than usual by about 5°C, might have created a gas pressure leading to an outward explosion of the gas. The locals have reported sighting similar holes in the area, and sci아테나카지노tists now worry that the release of trapped methane could threat아테나카지노 local industry and communities.

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