28 April 2010

THIS COULD BE A GAME CHANGER!

"Soil microbes produce less atmospheric CO2 than expected with climate warming

Key players in the carbon cycle, they multiply slowly when overheated

— Irvine, Calif., April 26, 2010 —
The physiology of microbes living underground could determine the amount of carbon dioxide emitted from soil on a warmer Earth, according to a study published online this week in Nature Geoscience."
This is lifted from a UC Irvine press release found here. Wow, who would have thought that negative feedback could be so important on a global scale.
And an even better summary with a neat graphic is found here.
"This could be a game changer. From the University of California, Irvine press release, a finding that suggests soil microbes have a negative feedback with temperature increase. This has broad implications for the amount of CO2 emitted estimated in climate models. It had been assumed that as temperature increased, microbes and fungii would increase their CO2 output. Globally, this microbiotic contribution is large.  The amount of CO2 released from soils worldwide each year is estimated to be about 8-10 times greater than the amount released by humans."

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