October 22, 2007
A Man's Got To Do What Mann Won't Do
Thanks to Willis Eschenbach for the amusing spoof 'reconstructed' photo of Michael Mann.
No doubt many blog readers will be familiar with the infamous 'Hockey Stick' graph, which used 'proxy' reconstructed temperature data up to 1980, grafted onto Hadley CRU instrumental data. The IPCC liked it so much that it appeared several times in the Third Assessment Report of 2001, thus enhancing the man-made global warming scare. A very different graph was used in the 1995 report, which clearly showed a Medieval Warm Period and the Little Ice Age.
To cut a long story short, Steve McIntyre and Ross McKitrick published critiques of the Michael Mann et al 'Hockey Stick' in 2003, which were updated in further publications in 2005 (GRL and E&E), followed in 2006 by a presentation to the National Academy of Sciences Expert Panel, “Surface Temperature Reconstructions for the Past 1,000-2,000 Years.”
Steve McIntyre and Ross McKitrick wrote on the Nature blog:........