Bishop Hill: Gonzo Science and the Hockey Stick

Cartoon by Josh.
Bishop Hill has been interviewed by The Register’s Andrew Orlowski about his new book The Hockey Stick Illusion:
In 2001 the IPCC published its Third Assessment report prominently featuring a graph that became “the logo of global warming”. Previous historical reconstructions didn’t show our modern warm climate as particularly anomalous. This was very different, and was hailed as a “call to action”. Yet Michael Mann’s studies were deeply flawed. Omit one or two proxies, for example, and the scary warming ‘spike’ disappears. Mann’s model could produce hockey stick shapes using random data, such as baseball scores, or red noise. Critics alleged that Mann’s choices of data and statistical tools all cooled the Medieval Warm Period, and emphasised late 20th Century warming.
Read the lengthy, comprehensive article: Bishop Hill: Gonzo science and the Hockey Stick
February 9th, 2010 at 10:25 pm
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