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View Diary: James Hansen at MIT (86 comments)

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  •  I suspect that Hansen was saying that methane was (4+ / 0-)
    Recommended by:
    forgore, Ozy, FindingMyVoice, gmoke

    not an immediate worry. In fact, another climate scientist, David Archer, has written a paper that says that methane release from the permafrost would thake 1000 years or more,
    and so is not an immediate problem.
    Some discussion here: and here:

    •  While it is certainly the case that (0+ / 0-)

      anthropogenic methane emissions currently exceed those from permafrost melt that "1000 years" number is simply unbelievable.  The rate of permafrost melt is increasing rapidly, and will surge within a decade as we reach zero summer sea ice.  There won't be a whole lot of permafrost left in 100 years, let alone 1000.  Summer in Siberia is already creating hundreds of thousands of square kilometers of bog where permafrost used to be just decades ago, and every year there's more.

      And then there's the methane plumes all along the continental shelf, sourced from clathrates melting in the also warming Arctic Ocean.

      Don't expect any reprieve from methane . . .

      Fake Left, Drive Right . . . not my idea of a Democrat . . .

      by Deward Hastings on Mon Apr 21, 2014 at 09:37:10 PM PDT

      [ Parent ]

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