Tuesday, May 05, 2009

Lies, Damned Lies and Statistics

Al Gore: “…unfortunately we still live in a bubble of unreality. Nobody is interested in solutions if they don’t think there’s a problem. Given that starting point, I believe it is appropriate to have an over-representation of factual presentations on how dangerous it is, as a predicate for opening up the audience to listen to what the solutions are, and how hopeful it is that we are going to solve this crisis.”

Lord Monckton observes:

My contribution to the 2007 report illustrates the scientific problem. The report’s first table of figures - inserted by the IPCC’s bureaucrats after the scientists had finalized the draft, and without their consent - listed four contributions to sea-level rise. The bureaucrats had multiplied the effect of melting ice from the Greenland and West Antarctic Ice Sheets by 10. The result of this dishonest political tampering with the science was that the sum of the four items in the offending table was more than twice the IPCC’s published total. Until I wrote to point out the error, no one had noticed. The IPCC, on receiving my letter, quietly corrected, moved and relabeled the erroneous table, posting the new version on the internet and earning me my Nobel prize. The shore-dwellers of Bali need not fear for their homes. The IPCC now says the combined contribution of the two great ice-sheets to sea-level rise will be less than seven centimeters after 100 years, not seven meters imminently, and that the Greenland ice sheet (which thickened by 50 cm between 1995 and 2005) might only melt after several millennia, probably by natural causes, just as it last did 850,000 years ago. Gore, mendaciously assisted by the IPCC bureaucracy, had exaggerated a hundredfold.

Lord Monckton also notes:

“At the very heart of the IPCC’s calculations lurks an error more serious than any of these. The IPCC says: “The CO2 radiative forcing increased by 20 percent during the last 10 years (1995-2005).” Radiative forcing quantifies increases in radiant energy in the atmosphere, and hence in temperature. The atmospheric concentration of CO2 in 1995 was 360 parts per million. In 2005 it was just 5percent higher, at 378 ppm. But each additional molecule of CO2 in the air causes a smaller radiant-energy increase than its predecessor. So the true increase in radiative forcing was 1 percent, not 20 percent. The IPCC has exaggerated the CO2 effect 20-fold.

Why so large and crucial an exaggeration? Answer: the IPCC has repealed the fundamental physical the Stefan-Boltzmann equation - that converts radiant energy to temperature. Without this equation, no meaningful calculation of the effect of radiance on temperature can be done. Yet the 1,600 pages of the IPCC’s 2007 report do not mention it once. The IPCC knows of the equation, of course. But it is inconvenient. It imposes a strict (and very low) limit on how much greenhouse gases can increase temperature. At the Earth’s surface, you can add as much greenhouse gas as you like (the “surface forcing”), and the temperature will scarcely respond. That is why all of the IPCC’s computer models predict that 10km above Bali, in the tropical upper troposphere, temperature should be rising two or three times as fast as it does at the surface. Without that tropical upper-troposphere “hot-spot”, the Stefan-Boltzmann law ensures that surface temperature cannot change much.

For half a century we have been measuring the temperature in the upper atmosphere - and it has been changing no faster than at the surface. The IPCC knows this, too. So it merely declares that its computer predictions are right and the real-world measurements are wrong. Next time you hear some scientifically-illiterate bureaucrat say, “The science is settled”, remember this vital failure of real-world observations to confirm the IPCC’s computer predictions. The IPCC’s entire case is built on a guess that the absent hot-spot might exist”.

John Houghton, second Chairman of the IPCC, wrote in 1994 that ‘unless we announce disasters, no one will listen, setting the tone and focus for the narratives which have followed climate change science and the IPCC since.

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