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On 1/6/2014 11:59 AM, Folkerts, Timothy J wrote:
John M sayspointed out, it's a positive feedback loop.
I've never understood this talking point. To first order rising
temperatures lead to rising levels of CO2 and rising levels of CO2
lead to rising temperatures. As John Denker has already
There are a few negative feedbacks as well. A couple ofthe more obvious ones to me are:
--> cooling
Rising temperatures --> more evaporation --> higher albedo
More CO2 --> plants grow better --> CO2 pulled from atmosphere -->(except by some on the fringe of climate denialism).
cooling
The warming from CO2 itself is not strongly contested
Generally people calculate that doubling CO2 will lead to ~ 1
C warming by itself, due directly to the radiative effects of
the CO2. That is the 'simple' physics of "radiative forcing".