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View Diary: Volcanoes, aerosols, and global warming (16 comments)

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  •  There will come a time (2+ / 0-)
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    DWG, se portland
    No doubt, some will be tempted to suggest that we tinker with deliberate sulfur aerosol injections.
    when this may be the only option humans will have.
    •  I think aerosol-based geoengineering is (1+ / 0-)
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      the only way to restore the climate. If we don't the earth will be in a screwed-up climate for millenia. We should still reduce and eventually eliminate CO2 emissions, though.

      Geoengineering Now!

      •  What should give folks pause (0+ / 0-)

        1. We cannot control major aerosol inputs from volcanic sources, increasing the chances that a problematic interaction between artificial and natural sources could be produced.

        2. The temptation to continue business-as-usual greenhouse gas emissions will be great, creating even greater demands on the geoengineering side.

        3. Is our understanding of the climate system and how to design optimal aerosol delivery into the upper atmosphere at a level that it is feasible in the near-term?

        You may be correct, but the long-term solution is to transition to low carbon energy sources. Even greenhouse emission storage has proven to be a difficult design challenge.

        Be radical in your compassion.

        by DWG on Sat Mar 02, 2013 at 11:22:28 AM PST

        [ Parent ]

    •  Dump iron in the oceans (0+ / 0-)

      is another thing be talked about. But one wonders if we don't end up chasing our tail, and end up throwing everything into total chaos.

      It is possible to read the history of this country as one long struggle to extend the liberties established in our Constitution to everyone in America. - Molly Ivins

      by se portland on Sat Mar 02, 2013 at 11:10:33 AM PST

      [ Parent ]

      •  It's already been tried and did not work. (2+ / 0-)
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        se portland, northsylvania

        Iron fillings have already been thrown into the ocean creating a huge algae bloom. The idea was that when the algae died it would sink to the bottom of the ocean with the carbon it absorbed and would thus continue to take carbon dioxide out of the air.

        However, the algae simply decomposed on the surface re-releasing the carbon dioxide back into the atmosphere.

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