Defusing the Arctic’s time bomb

Poles

Methane apocalypse?
THEY look like massive bomb craters. So far seven of these gaping chasms have been discovered in Siberia, apparently caused by pockets of methane exploding out of the melting permafrost. Has the Arctic methane time bomb begun to detonate in a more literal way than anyone imagined?

The “methane time bomb” is the popular shorthand for the idea that the thawing of the Arctic could at any moment trigger the sudden release of massive amounts of the potent greenhouse gas methane, rapidly accelerating the warming of the planet. Some refer to it in more dramatic terms: the Arctic methane catastrophe. Even the methane apocalypse.

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