You wrote : "He believes that the release of ocean sediment methane hydrate is the big marker, or tipping point, of disaster."
Well it seems the tipping point is here. Please pass these on to FFL if you feel inclined : Science stunner: Vast East Siberian Arctic Shelf methane stores destabilizing and venting http://climateprogress.org/2010/03/04/science-nsf-tundra-permafrost-methane-east-siberian-arctic-shelf-venting/ ......found Arctic temperatures almost beyond imaginationabove 74°Ftemperatures more than 18°F warmer than current climate models had predicted when applied to this period. The three dozen authors conclude that existing climate models are missing crucial feedbacks that can significantly amplify polar warming. http://climateprogress.org/2007/09/20/a-methane-feedback-from-the-past-strikes-again/
