11 Jan '12, 1pm

An online model of methane in the atmosphere via @RealClimate

Thanks for the interactive model, but the assumption implicit in it is that there will be a one time spike or a steady quantity over some period of time. Isn’t it much more likely that feedback will increase the amount of methane released every year for however long it takes to melt all the clathrate and release all the free methane below? Is there some way to model such a result? Or are you assuming that any release will come all at once since, as the NASA report put it, there is a zipper-like chain reaction–once hydrates start dissolving in one place, sea water rushes down filling in the now empty space and in turn destabilizing neighboring hydrates…? [Response: By setting the duration of a slug ("spike") to 100 years, say, there will be a new source imposed every year for 100 years. Kinda loses its spikiness. David]

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

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