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Taking Keating seriously part 2: the IPCC’s human-attribution claim is prima facie unscientific

July 27, 2014

Watts Up With That?

ar5_ipcc_home_for-finalGuest post by Alec Rawls (see part 1)

Ex-physics teacher Christopher Keating, who strongly believes that human activity is causing dangerous global warming, is offering $30,000 to anyone who can prove that “claims of man-made climate change” are not supported by the science. What claims? He gives as an example the IPCC’s central assertion that: “It is extremely likely (95-100%) that human influence has been the dominant cause of the observed warming since the mid-20th century.” Easy money (if he would actually give it, but that is secondary). There are several grounds, already laid out by a variety of skeptics, why this claim of extreme scientific certainty is prima facie unscientific.

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