Friday, April 26, 2013
I have submitted the following comment, on CO2 climate sensitivity, to the bishop hill site:
The ongoing CO2 climate sensitivity debate is a festering parade of incompetence. Outside of 1975-2000, the up-and-down global temperature record does not correlate with the level of CO2 in the air (but it does correlate, quite well, with the multidecadal ocean oscillations, on top of a presumed half-degree-per-century of warming since the Little Ice Age--so why bother with CO2 at all, why treat the CO2 "greenhouse" theory as sound and settled, is the proper scientific question). When one looks for the simplest, most definitive evidence to force the "consensus" to admit the obvious--that CO2 is not to blame, and their models which assume it is are simply bad science enshrined as "settled"--one need go no further than a proper Venus/Earth temperatures comparison (at points of equal pressure in the two atmospheres, and over the range of Earth tropospheric pressures). Then one finds a definitive rethinking of basic atmospheric warming theory is forced by those two real, detailed atmospheres--a rethinking that denies any global-warming "greenhouse effect" at all, and any non-zero CO2 climate sensitivity whatsoever:
CO2 Climate Sensitivity Vs. Reality
...and one is embarrassed by the continued childish fussing and fighting that masquerades as "expert" estimates, of that which simply does not exist, according to that most simple, competent comparison of the Temperature-vs-Pressure curves of Venus and Earth. One realizes climate science is a farce, and a fraud, and above all a mass delusion, and one wonders how to disabuse the world of that delusion before it is too late--when even the "lukewarmers" insist the "basic science" is settled. (The basic science is a total lie, gentlemen and ladies. You are pursuing a phantom, created by the most incompetent scientists ever, and are rendered incompetent yourselves thereby. You are made idiots by your continued serious consideration of patently false science. You are mumbling incoherently in a madhouse, and you need to slap yourselves out of it, and refuse to dignify idiot "experts"--alarmists and lukewarmers alike--any further....unless you or they can explain, within the "consensus" theory, why the Venus/Earth temperature ratio should be precisely (!) due only to the relative distances of the two planets from the Sun, and nothing else. Hint: You cannot, and they cannot. Their science is doomed.)
Saturday, April 6, 2013
Anyone who has followed the climate debates on the internet knows that even most "skeptics" of runaway global warming (and all of those who ever make the news or have a large audience on their blogs) accept the consensus "greenhouse effect" and the idea of a "CO2 climate sensitivity", or theoretically expected global mean surface temperature (GMST) increase with increasing atmospheric carbon dioxide (CO2--due, everyone is brainwashed to believe, in increasing fossil fuel consumption by man). Anthony Watts has posted yet another article by one of his fellow-believers, arguing for a significant value of the CO2 climate sensitivity (albeit smaller than that claimed by the alarmist climate scientists). The following is my response, to any who are still capable of thinking for themselves on the subject, and who want definitive, quantitative proof of the truth of the matter.
Anyone who wants to keep worrying about the "CO2 climate sensitivity" needs to explain why, in the Venus/Earth temperature comparison I performed well over 2 years ago, there is none at all: Venus has 96.5% CO2 to Earth's less than .04%, yet the Venus/Earth temperature ratio is a constant due entirely and precisely to the ratio of their distances from the Sun and nothing else (no "greenhouse effect" contribution, no "difference in planetary albedo" contribution--no anything but the difference in the solar distance).
The precision with which the solar distance, by itself, explains the Venus/Earth temperature ratio--at points of equal pressure, over the range of Earth tropospheric pressures--is nothing short of amazing, in the present tattered intellectual climate, in which the greenhouse effect is adamantly, vehemently claimed to be "settled science", and even most "skeptics" smugly argue for SOME CO2 climate sensitivity. But the Venus/Earth comparison says that smug certainty is a lie, and there simply is no greenhouse effect, of increasing temperature with increasing atmospheric carbon dioxide, AT ALL.
If one is dense enough, after studying my Venus/Earth analysis, to demand what that analysis shows the CO2 climate sensitivity to be, here is what it says:
First, for over half of the range of Earth tropospheric pressures (between ~650 - 250 mb), the Venus temperature is COOLER, by about 5°K, than is predicted from the solar distances alone. But as indicated in my original analysis, in this pressure range lies the thick planetary cloud cover of Venus. Below that range--between 1,000 and 700 mb--the temperature ratio is essentially just that predicted from the solar distances alone; above the cloud layer as well (at 200 mb), the ratio again comes back to very near the "solar distances only" prediction, though not quite all the way (the Venus temperature there is only ~1.7K cooler than so predicted)
The best estimate of the climate sensitivity to changes in CO2 alone, then, is made with those points below the Venus cloud layer. For the 4 points in that pressure range, in my original analysis, the Venus/Earth temperature ratio varies between 1.172 (at 800 mb) and 1.178 (at 1,000 mb), with the average being 1.175.
(The uncertainty in that measured ratio is just the uncertainty in the Venus temperature (1.4K) divided by the corresponding Earth temperature (average 278.3K, for those 4 points), or +/-.005.)
Now 1.175 is just .001 less than the 1.176 predicted by the solar distances alone, and since that error is much less than the +/- .005 uncertainty, it should be immediately obvious that there is no greenhouse effect, without even bothering to calculate a "CO2 climate sensitivity". But let's do so anyway. That .001 "error" in the temperature ratio gives a possible error of only .001 x T_earth, or about -.3K, from the Venus temperature predicted by solar distances alone (that is, using 1.176 for the ratio). If one assumes that -.3K difference is due entirely to the "CO2 greenhouse effect", then the maximum CO2 climate sensitivity (in degrees K per doubling of CO2) is -.3K divided by the number of doublings, between ~353 ppm on Earth (in October 1991, when the Venus data was obtained) and 965,000 ppm (96.5%) on Venus--which is 11.4 doublings of CO2, so that -.3K/11.4 = -.026K/doubling of CO2, or about -.03K/doubling (a slight negative number, note), for the CO2 sensitivity.
But with an uncertainty of +/- 1.4K in the Venus temperature (see my original analysis), the uncertainty in the CO2 climate sensitivity is +/- 1.4/11.4 = .12K/doubling.
So my Venus/Earth comparison demands that the CO2 climate sensitivity must be less than
( -.026 +/- .12) K/doubling
and since the indicated sensitivity is much smaller than the uncertainty, the CO2 climate sensitivity revealed by my Venus/Earth comparison must be reported as
essentially zero (0),
...which is just a precise quantitative statement of the fact that has been obvious all along, that the Venus/Earth comparison shows there is NO greenhouse effect, period. Only solar distance counts in the detailed comparison of these two vastly different planet-plus-atmosphere systems. And the physical reason is because both atmospheres are fundamentally and globally warmed in precisely the same way: by direct absorption of the same physical fraction of the incident solar energy (and NOT from the planetary surface, as almost everyone--and certainly every mis-titled "expert"--believes is the case on Earth).
Added Note: In the above, there are in fact three different, but equivalent, quantitative statements to demonstrate that there is no greenhouse effect of increasing temperature with increasing CO2:
1) The error between measured Venus temperature and that predicted from Earth's Standard Atmosphere and the smaller solar distance of Venus = (-0.3 +/- 1.4)K,
2) The error between measured and predicted Venus/Earth temperature ratio = -.001 +/- .005,
3) The possible size of the CO2 climate sensitivity = zero (-.026 +/- .12)(K/doubling of CO2)
In all three quantitative statements, the (+/-) uncertainty is about 5 times the error, indicating the error is entirely negligible