Our climate change and global warming correspondent, Greg Tomlinson, posted a comment about my post Climate Change XVI. I moved it here to be easily available to our readers and posted my reply below.
At this point, I no longer argue about whether the earth is warming or cooling. As I have mentioned previously, I believe that the integrity of much of the temperature data has been severely compromised by numerous “corrections” or “adjustments”. Also, stories about the declining polar bear population and shrinking Antartica ice shelves are simply fiction. On top of that, there is the problem of much of the AGW community (especially the folks at SkepticalScience) tending to attribute every severe weather event to global warming even though meteorologists generally tend to associate such events with cooling. Severe weather usually occurs when a cold front collides with warm moist air. Finally, there is the issue that many of those living in the lower 48 states are not seeing warming, but instead are getting longer colder winters. Of course, none of this would be convincing evidence at all to the AGW community, and I simply don’t have time nor energy to sort out fact and fiction among their thousands of claims, and as a “non-expert”, they wouldn’t take me seriously anyway.
There is one aspect of this global warming/cooling, however, that I still stand firmly behind. Whether the earth is warming, cooling, or neither, and that is that humans cannot possibly be causing it. The “control knob” theory of carbon dioxide is easily refuted by anyone with a home weather station. If the station reports any relative humidity less than 100 percent, then the control knob effect is disproven. Remember that for carbon dioxide to be the control of the radiative forcing feedback loop, the concentration of water vapor (the stronger GHG) must be dependent on temperature only. But the only way that can happen is if the water vapor concentration is fixed to its saturation value at all points in the atmosphere. If the H2O vapor concentration would ever drop below this value at any location, then by definition of saturtion, more H2O vapor could be added to the air without raising its temperature, thereby contradicting the requirement that the water vapor concentration must depend on temperature only. Since humans would need this non-existant “control knob” to significantly affect temperature, there is no way they can cause any reported warming (or cooling).
BTW, there are other other bazaar, anti-intuitive results that can be drawn from this CO2 control knob, including the “frozen” world prediction if there were no CO2 in the atmosphere at the time the earth was formed.
Glad to hear from you again, and pleased that you “no longer argue about whether the earth is warming or cooling.” Informed people know that the Earth is warming because of human use of fossil fuels. Continue reading