Wednesday, September 28, 2016
Planetary Rotation and Temperature: "Let go, Luke. Use the Force."
The Dr. Roy Spencer site has a post on "The Faster a Planet Rotates, the Warmer Its Average Temperature". My response:
As I have pointed out many times, for example here: The Venus/Earth temperature ratio, at points of equal pressure in the two atmospheres, over the full range of Earth tropospheric pressures, is essentially explained by the ratio of their solar distances alone (and precisely so both above and below the thick Venus cloud layer), despite a number of large differences in the two planet-plus-atmosphere situations that are assumed by climate scientists and their believers to affect the global mean temperature, but don't(!). (I won't repeat them all here, but Venus has 2400 times the concentration of carbon dioxide in its atmosphere as does Earth, with no effect, so the "greenhouse effect" is precisely zero.)
It is quite foolish to take the position that the supposed effects of all those differences between the Venus and Earth atmospheres simply cancel one another out, by "coincidence", entirely, and as precisely as my Venus/Earth comparison indicates they would have to do. I wrote a little about this last April, here. And adding yet another large difference, between Venus and Earth, to the list of supposed causes for their temperature difference, only makes the "coincidence" argument more ridiculous. The reality, that only solar intensity is effective, is quite clear, and quite simply explained, physically, by the hydrostatic condition, as I have written over and over again.
Now Dr. Spencer (who is well respected by the "skeptics" in the climate debates, for his satellite measurements of global temperature, showing little or no global warming) brings up planetary rotation as yet another variable supposedly affecting the global temperature. Yet Earth rotates in 1 day, while Venus rotates in 243 days--yet the Venus/Earth temperature ratio shows that huge difference, just like all the other huge differences between Venus and Earth, has NO EFFECT upon the temperature. The temperature-vs-pressure curves of Venus and Earth are the same, when just their different solar distances are taken into account, and nothing else.
So please, Dr. Spencer, and every other atmospheric or climate scientist, and every other believer in the current climate dogma: "Let go, Luke. Use the Force."