04 Jan '12, 6pm

"Much Ado About Methane" (by Dave Archer) just up at #RealClimate #climate #climatechange

"Much Ado About Methane" (by Dave Archer) just up at #RealClimate #climate #climatechange

So maybe by the end of the century in some reasonable scenario, perhaps 2000 Gton C could be released by human activity under some sort of business-as-usual scenario, and another 1000 Gton C could come from soil and methane hydrate release, as a worst case. We set up a model of the methane runaway greenhouse effect scenario, in which the methane hydrate inventory in the ocean responds to changing ocean temperature on some time scale, and the temperature responds to greenhouse gas concentrations in the air with another time scale (of about a millennium) (Archer and Buffett, 2005). If the hydrates released too much carbon, say two carbons from hydrates for every one carbon from fossil fuels, on a time scale that was too fast (say 1000 years instead of 10,000 years), the system could run away in the CO2 greenhouse mode described above. It wouldn’t matter too much if the carbo...

Full article: http://www.realclimate.org/index.php/archives/2012/01/muc...

Tweets

Dot Earth Blog: 'Much Ado About Methane'

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Dot Earth Blog: More Views on Climate Risk and ...

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We would first note that we have never stated that the reason for the currently observed methane emissions were due to rec...

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