Arctic Methane Alert — Ramp-Up at Numerous Reporting Stations Shows Signature of an Amplifying Feedback
Originally posted on robertscribbler:
Over the past few months, reporting stations around the Arctic have shown a ramping rate of atmospheric methane accumulation. The curves in the graphs are steepening, hinting at a growing release of methane from a warming Arctic environment.
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(Alert, Canada methane graph shows atmospheric methane increases in the range of 20 parts per billion in just one year. This rate of increase is 2-3 times the global average for the past five years. A skyrocketing rate of increase. Image source: NOAA ESRL.)
A Massive Thawing Carbon Store in the Far North
The science is pretty settled. There’s a massive store of ancient carbon now thawing in the Arctic.
In the land-based permafrost alone, this store is in the range of 1.3 billion tons — or nearly double the volume in the atmosphere right now. Arctic Ocean methane hydrates in the East Siberian Arctic Shelf…
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