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New theory addresses frozen Earth paradox
LONDON, Sept. 24 (UPI) -- Melting permafrost in the Arctic has released millions of tons of methane gas into the atmosphere, Swedish scientists have determined.
Scientists have discovered intense concentrations of methane bubbling up from beneath the Arctic seabed, The Independent reported Tuesday. Methane gas is 20 times more potent than carbon dioxide.
The gas was found bubbling up through "methane chimneys" along Russia's northern coast. The scientists said the melting of the sub-sea layer of permafrost has allowed methane to rise from underground deposits formed before the last ice age.
Scientists said they believe the sudden release of methane gas has, in the past, been responsible for dramatic climate change and even mass extinction of species, the British newspaper said.
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