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A summary of Hockey stick
gbaikie — (archived)

[In case you missed it]

"The hockey stick debate is about two things. At a technical level it concerns a well-known study that characterized the state of the Earth’s climate over the past thousand years and seemed to prove a recent and unprecedented global warming. I will explain how the study got the results it did, examine some key flaws in the methodology and explain why the conclusions are unsupported by the data. At the political level the emerging debate is about whether the enormous international trust that has been placed in the IPCC was betrayed. The hockey stick story reveals that the IPCC allowed a deeply flawed study to dominate the Third Assessment Report, which suggests the possibility of bias in the Report-writing process. In view of the massive global influence of IPCC Reports, there is an urgent need to bias-proof future assessments in order to put climate policy onto a new foundation that will better serve the public interest."
http://www.climatechangeissues.com/files/PDF/conf05mckitrick.pdf
A PDF file

Nice quote:
"[The findings] hit me like a bombshell, and I suspect it is having the same effect on many others. Suddenly the hockey stick, the poster-child of the global warming community, turns out to be an artifact of poor mathematics."

And another:
" “The IPCC review process is fatally flawed. The behavior of Michael Mann is a disgrace to the profession…The scientific basis for the Kyoto protocol is grossly inadequate.” "

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