Wednesday, October 15, 2008

Chemist declares himself 'skeptic' - 'No uncontrolled, runaway greenhouse effect has occurred in the last half billion years' -

Global Warming – Man-made or Natural? | Facts & Arts

Chemist Dr. Kenneth Rundt, a bio-molecule researcher and formerly a research assistant and teacher at Abo Akademi University in Finland, declared his global warming dissent in June 2008. “Let me state immediately before you read on that I count myself among the ‘skeptics’,” Rundt wrote in a scientific paper titled “Global Warming – Man-made or Natural?” on June 16, 2008. “I am only a humble scientist with a PhD degree in physical chemistry and an interest in the history of the globe we inhabit. I have no connection with any oil or energy-related business. I have nothing to gain from being a skeptic,” Rundt explained. “My personal belief is that natural forcings have more importance than anthropogenic forcings such as the CO2 level,” Rundt wrote. “It can also be reliably inferred from palaeoclimatological data that no uncontrolled, runaway greenhouse effect has occurred in the last half billion years when atmospheric CO2 concentration peaked at almost 20 times today’s value. Given the stability of the climate over this time period there is little danger that current CO2 levels will cause a runaway greenhouse effect. It is likely, therefore, that the IPCC’s current estimates of the magnitude of climate feedbacks have been substantially overestimated,” Rundt wrote. According to Rundt, even a doubling of CO2 levels from 317 ppm to 714 ppm “would increase absorption approximately 0.17%. This corresponds to an additional radiative forcing of 0.054 W/m2, substantially below IPCC‘s figure of 4 W/m2. An increase of this order would not result in a temperature increase of more than a tenth of a centigrade.” “The biggest problem for the pro-IPCC scientific community is that there are no means to experimentally determine the effect of an increasing CO2 level,” Rundt wrote. “IPCC’s spokesman Al Gore has often claimed that the ‘science is settled’, but there is a growing group of scientists critical against the claims of ‘settled science’ and overwhelming ‘consensus,’ he concluded. (Via Marc Morano)

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