Climate Audit
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Climate Audit is a blog run by Stephen McIntyre, a mining and mineral exploration specialist who has a degree in mathematics and has also worked as a public policy analyst for the Canadian government. The blog explores the data and analysis used in historical reconstructions of past climate, especially multiproxy reconstructions such as the 1998 reconstruction by Mann, Bradley and Hughes ("MBH98"), which was prominently featured in the IPCC Third Assessment Report published in 2001.
McIntyre became interested in these issues after advocates of the Kyoto Protocol used the Hockey Stick graph from MBH98 in ways that he found similar to Bre-X and other stock frauds, leading him to try to audit the MBH98 data and analysis. He launched the blog in late January 2005, just before Geophysical Research Letters published a paper by McIntyre and Ross McKitrick critiquing MBH98. The blog is almost exclusively concerned with McIntyre's efforts to audit MBH98 and other climate publications. It supports comments.
Climate Audit has been highlighted by the press including The Wall Street Journal[1], United Press International[2], and Environmental Science & Technology[3].
A few of the scientists whose work is discussed at Climate Audit contribute to another blog, RealClimate, which McIntyre and his commentators frequently critique.