Lubos Motl at The Reference Frame posts links to the documentary "The Great Global Warming Swindle" which was shown in the UK on Thursday Mar 8th/07. I watched it yesterday and thought it was well done.
While they did talk about how unreliable computer models are at predicting the future, I would have liked to see them point out more aggressively how the whole idea of impending disaster exists only in those computers and not in the historical record; that the historical record shows that every time the earth has warmed it has generally been good for most life forms. They did mention it but, to me, lightly.
I then went over to some pro-global warming sites to see what they had to say about "Swindle." First I went to Real Climate, the website of Michael Mann and company. There I found a so called response to Swindle by a William and Gavin. In response to Swindle's contention that CO2 does not match the temperature record of the 20th century, sirs William and Gavin (W&G) claim "True but not relevant, because it isn't supposed to." So the more CO2 we put into the air is not going to match any rise in temperature? That's good to know. But why did the planet cool from 1940 till 1975? Sirs W&G have a reason: Sulfate aerosols. They claim that these aerosols blocked sunlight and caused some cooling and they further claim that because the doc. didn't mention aerosols "...they are lying to us by omission."
There is only one problem with this picture: Sulfate aerosols are largely confined to the northern hemisphere, which means that the southern hemisphere should have been warming significantly more than the NH. But according to Fred Singer here the SH only warmed at a rate of half that of the NH. (Scroll down half-way to figure #9 to begin reading about Sulfate aerosols.) W&G didn't mention this in their rebuttal. Now who is "lying to us by omission"?
In response to the documentary's claim that the troposphere would warm faster than the surface temps, they claim it is--now. Now that the previous "discrepancies" have been fixed. Translation: global warming alarmists have recalibrated the satellites and weather balloons to give data that match their surface readings. I have to do more research on this but it sure smells fishy to me. I mean the National Weather Service has been sending up weather balloons since 1957 and NASA has been launching weather satellites since 1979 and now we're to believe they were doing it all wrong, that warming scientists have to step in and show these two agencies how to get it right? That when 2 technologies, balloons and satellites, say one thing and a third, surface temps, say another, it is the two that must be wrong? How come "consensus" didn't apply in that case?
The documentary shows how environmental groups are acting to prevent energy growth in Africa by blocking the development of power plants that would provide electricity to the masses stuck in absolute poverty. Sirs W&G reply that Kyoto exempts third world nations. Obviously, Kyoto is a strawman and has nothing to do with green NGOs fighting against the building of dams for hydro power and fossil fuel plants.
In any event, all this pro and con debate is mostly pointless. If the globe is warming it is a very good thing. There isn't a shred of evidence in the historical record showing that warming will result in catastrophe for life on earth.
Some warmers say that the sun's influence on climate change is negligible. But new reports show that Pluto, Mars, Jupiter and Neptune's moon Triton are all warming. These bodies are a lot farther from the sun than is the Earth so why are they affected by the sun while the Earth isn't?
Heh, one last note:
Ice Age Now reports that an Arctic expedition to draw attention to global warming had to be cancelled when one of its members suffered frost bite. They just don't get it!