-- R.G. Menzies
LIBERTARIAN/CONSERVATIVE DIGEST AND COMMENTARY FROM AN ACADEMIC PSYCHOLOGIST in Brisbane, Australia. My academic publications are widely read
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New analysis finds water vapor is a negative feedback
An utterly central part of Warmist theory is that warming will increase cloudiness and cloudiness will in turn create more warming -- leading to "runaway" warming. Sadly for them, there are now multiple lines of evidence to show that increased cloudiness would cause COOLING, not warming. The latest below -- JR
A prior post explains in simple terms why the runaway greenhouse theory is impossible due to the negative feedback from water vapor. A new analysis by physicist Clive Best of the global 5500 station CRUTEM4 database over the past 111 years comes to the same conclusion: feedback from water vapor is negative.
"the IPCC argues that feedbacks from increased water evaporation will lead to enhanced warming. This is not observed in those regions most effected by water vapour. In fact the opposite seems to be the case implying negative feedback."
His analysis compares the most ARID stations [low humidity/water vapor] with the most WET stations [high humidity/water vapor] and finds that
"There is a clear trend in the data that ARID stations cool faster and warm faster than WET stations." ...
"Water Feedback = - 1.8 +- 0.2 W/m2K-1
Remarkably this is the same value as that derived from a simple argument regarding the Faint Sun paradox see here."
By JR on Wednesday, April 18, 2012
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