Some anthropogenic global warming (AGW) skeptics seem to think that the tropical troposphere temperature data disproves the theory.
According to Tamino at Open Mind:
"Computer models of global climate predicted that the troposphere should warm faster than the surface; for the globe as a whole the tropospheric warming should be about 20% larger than surface warming...and in the tropics the tropospheric warming should be about 50% larger...It’s important to emphasize that this is not a prediction which depends on global warming being due to man-made greenhouse gases. Enhanced tropospheric warming is common to all causes of global warming, be it due to greenhouse gases, solar variability, or whatever. Hence enhanced tropospheric warming cannot be used to determine the cause of global warming."
Plus various analyses of tropospheric temperature data vary from 0.05 to 0.2°C warming per decade, so there is high uncertainty in this data.
http://tamino.wordpress.com/2007/12/31/msu/
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