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However beautiful the strategy

June 7, 2013

said Churchill, “you should occasionally look at the results.”

Via Coyote blog, some results-checking of climate models by Roy Spencer. Click the image for a larger (readable) view.

Dr. Roy Spencer has compared the output of 73 climate models to actual recent temperature measurements. He has focused on temperatures in the mid-troposphere in the tropics — this is not the same as global surface temperatures but is of course related. The reason for this focus is 1) we have some good space-based data sources for temperatures in this region that don’t suffer the same biases and limitations as surface thermometers and 2) This is the zone that catastrophic anthropogenic global warming theory says should be seeing the most warming, due to positive feedback effects of water vapor. The lines are the model results for temperatures, the dots are the actuals.

CMIP5-73-models-vs-obs-20N-20S-MT-5-yr-means1

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