Environment

Jun 6, 2011

Global warming above 2° so far mitigated by accidental geo-engineering

According to NASA’s Goddard Institute of Space Science climate reports, global warming is already committed to a rise above two degrees, writes Dr Andrew Glikson, Earth and paleoclimate science, Australian National University

According to NASA’s Goddard Institute of Space Science climate reports, global warming is already committed to a rise above two degrees. The magical two degrees ceiling determined by governments is only holding thanks to effective, if unintended, geo-engineering by sulphur dioxide emitted from industry, holding global warming to about half of what it would be otherwise.

6 comments

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6 thoughts on “Global warming above 2° so far mitigated by accidental geo-engineering

  1. John Bennetts

    Where’s Tamas Calderwood and his attempts at rebuttal of Andrew Glickson’s facts?

  2. stephen martin

    Why the different bases to indicate the warming – surely the data should be compared to the long term trend.
    I find it noteworthy that the November 2010 data shows cooling over much of eastern Australia, you would have expected warming surely with the onset of one of the strongest el Nina events ever recorded.

  3. stephen martin

    Sorry, that of course should read one of the strongest la Nina events.

  4. Mark M

    @Stephen Martin

    Sorry, that of course should read one of the strongest la Nina events.

    La Nina causes rains on the East coast of Australia. Not sure where you get the warming idea from – La Nina is generally associated with cooler global temperatures – as we have seen in Australia in late 2010, early 2011.

  5. stephen martin

    @ Mark M

    I am aware of course aware of the related rain in eastern Australia as a result of a la Nina event. The point is that the waters of the south American coast are a lot colder than normal (and warmer than normal with an el Nino event.) the colder waters are balanced by increased convection over east Australia caused by warm than normal air masses. That was my point above.

  6. Boerwar

    I used to yearn for access to good science writing about AGW.

    Now that we get it at Crikey, I am reminded of one of my aunties, a migrant, who refused to learn english in case she ended up reading newspapers.

    She reckoned she was happier not knowing things.

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