There is no credible experiment that proves that the greenhouse gas effect exists. There are experiments that prove that the GHGE does not exist. Here is a report from a former member of EPA that could not find any connection between CO2 and atmospheric temperatures therefore EPA fired him. Look up Dr. Alan Carlin.
Comments on Draft Technical Support Document for Endangerment Analysis for Greenhouse Gas Emissions under the Clean Air Act
By Alan Carlin
Based on TSD Draft of March 9, 2009
EXECUTIVE SUMMARY Alan Carlin Report March,16,2009-EPA
These comments are based on the draft Technical Support Document for Endangerment Analysis for Greenhouse Gas Emissions under the Clean Air Act (hereafter draft TSD) issued by the Climate Change Division of the Office of Atmospheric Programs on March 9, 2009.
Unfortunately, because I was only given a few days to review this lengthy document these comments are of necessity much less comprehensive and polished than they would have been if more time had been allowed. I am prepared, however, to provide added information, more detailed comments on specific points raised, and any assistance in making changes if requested by OAR.
The principal comments are as follows:
As of the best information I currently have, the GHG/CO2 hypothesis as to the cause of global warming, which this Draft TSD supports, is currently an invalid hypothesis from a scientific viewpoint because it fails a number of critical comparisons with available observable data. Any one of these failings should be enough to invalidate the hypothesis; the breadth of these failings leaves no other possible conclusion based on current data. As Feynman (1975) has said failure to conform to real world data makes it necessary from a scientific viewpoint to revise the hypothesis or abandon it (see Section 2.1 for the exact quote). Unfortunately this has not happened in the global warming debate, but needs to if an accurate finding concerning endangerment is to be made. The failings are listed below in decreasing order of importance in my view:
1. Lack of observed upper tropospheric heating in the tropics (see Section 2.9 for a detailed discussion).
2. Lack of observed constant humidity levels, a very important assumption of all the IPCC models, as CO2levels have risen (see Section 1.7).
3. The most reliable sets of global temperature data we have, using satellite microwave sounding units, show no appreciable temperature increases during the critical period 1978-1997, just when the surface station data show a pronounced rise (see Section 2.4). Satellite data after 1998 is also inconsistent with the GHG/CO2/AGW hypotheses
4. The models used by the IPCC do not take into account or show the most important ocean oscillations which clearly do affect global temperatures, namely, the Pacific Decadal Oscillation, the Atlantic Multidecadal Oscillation, and the ENSO (Section 2.4). Leaving out any major potential causes for global warming from the analysis results in the likely misattribution of the effects of these oscillations to the GHGs/CO2 and hence is likely to overstate their importance as a cause for climate change.
5. The models and the IPCC ignored the possibility of indirect solar variability (Section 2.5), which if important would again be likely to have the effect of overstating the importance of GHGs/CO2.