arctic-news | Although the sudden high rate Arctic methane increase at Svalbard in
late 2010 data set applies to only a short time interval, similar sudden
methane concentration peaks also occur at Barrow point and the effects
of a major methane build-up has been observed using all the major
scientific observation systems. Giant fountains/torches/plumes of
methane entering the atmosphere up to 1 km across have been seen on the
East Siberian Shelf. This methane eruption data is so consistent and
aerially extensive that when combined with methane gas warming
potentials, Permian extinction event temperatures and methane lifetime
data it paints a frightening picture of the beginning of the now
uncontrollable global warming induced destabilization of the subsea
Arctic methane hydrates on the shelf and slope which started in late
2010. This process of methane release will accelerate exponentially,
release huge quantities of methane into the atmosphere and lead to the
demise of all life on earth before the middle of this century.
1 comments:
My understanding is the end-Permian is still a mysterious circumstance, which makes it , by definition, pretty cool. But I don't think a hundred gigaton release of methane will cut it. Not when there is evidence for a magma upwelling cooking a cola field the size of the Lower 48. More of a concern, given that methane takes about a decade in the atmosphere to oxidize to CO2, is a chronic release. The drama queen catastrophic release of even 2000 Gt of methane strikes me as pretty much that. And if it does, why A Strangeloveian happy ending for all of us, so what's the fuss? But business-as-usual human excretion of CO2, chronic release over the next century? A much more likely extinction scenario.
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