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View Diary: Triggers to Global Warming (16 comments)

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  •  Good list, but global warming is already happening (2+ / 0-)
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    alypsee1, yunohu

    Any of the things on your list, however, could be the precipitating even for an unmitigatable cascade.

    A few of other contributors include continuing deforestation, sudden changes in ocean currents due to rising temperatures, or bursting ice dams introducing enough cold water to a dependable current to stall its circulation. The North Atlantic currents around Iceland are narrow, immediately linked to rapidly melting ice bodies, and seriously vulnerable to sudden changes.

    Dick Cheney 2/14/10: "I was a big supporter of waterboarding"

    by Bob Love on Thu Jul 31, 2014 at 07:02:39 PM PDT

    •  I mentioned deforestation below (1+ / 0-)
      Recommended by:
      Bob Love

      as an ongoing long-term, unabated contributor to the problem.  The fact that much forest, both tropical & boreal, is over peat, is foreboding if we don't get a grip on forest burning.

      Ocean currents are another factor, as you mention, and quite unpredictable, which could affect some of the others, though some say they might possibly be an alleviating force.

      •  worth noting; each item has a long sub-list (1+ / 0-)
        Recommended by:
        Bob Love

        for example;
        ocean acidification means less ability for shellfish to grow their shells and coral to form, leading to imbalance in the food chain. Problem is much worse for plankton and other base creatures. It also creates good conditions for jellyfish which can be harmful to many fish. less oxygen is absorbed in acidic water, expanding existing 'dead zones' in the seas, further challenging sea life. Also, less CO2 is absorbed, exacerbating the problem...
        Deforestation decreases the carbon sink attributes of the world's forests, destroys critical habitat, allows invasive species a foothold, can unleash new and virulent diseases, provides new niches for rodents (big time disease vectors themselves) and the act of deforestation itself releases massive amounts of CO2 by disturbing soils on a grand scale...

        These lists are incomplete for many reasons, one of which is that nobody knows all of the bad that these activities create.

        Last full month in which the average daily temperature did not exceed twentieth-century norms: 2/1985 - Harper's Index, 2/2013

        by kamarvt on Fri Aug 01, 2014 at 05:09:39 AM PDT

        [ Parent ]

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