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Australian Climate Madness

Tuesday, May 12, 2009

Warming causes increases in CO2

After all the ballyhoo about my post on Sunday deconstructing Michael Ashley's review of Ian Plimer's Heaven + Earth in The Weekend Australian, a timely article from Roy Spencer about the origins of CO2 in the atmosphere:
So, I keep coming back to the question: If warming of the oceans causes an increase in atmospheric CO2 on a year-to-year basis, is it possible that long-term warming of the oceans (say, due to a natural change in cloud cover) might be causing some portion of the long-term increase in atmospheric CO2?
...
My primary purpose in presenting all of this is simply to stimulate debate. Are we really sure that ALL of the atmospheric increase in CO2 is from humanity’s emissions? After all, the natural sources and sinks of CO2 are about 20 times the anthropogenic source, so all it would take is a small imbalance in the natural flows to rival the anthropogenic source. And it is clear that there are natural imbalances of that magnitude on a year-to-year basis...

Read it here.

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