Global warming graph attacked by study
By Fiona Harvey, Environment Correspondent
Published: April 14 2010 19:51 | Last updated: April 14 2010 19:51
Professor David Hand, president of the Royal Statistical Society, said that a graph shaped like an ice hockey stick that has been used to represent the recent rise in global temperatures had been compiled using “inappropriate” methods.
What they won't tell you is what else Prof. Hand had to say:
Prof Hand said his criticisms should not be seen as invalidating climate science. He pointed out that although the hockey stick graph – which dates from a study led by US climate scientist Michael Mann in 1998 – exaggerates some effects, the underlying data show a clear warming signal.
He accused sceptics of “identifying a few particular issues and blowing them up” to distort the true picture. The handful of errors found so far, including the exaggerated hockey stick graph and a mistaken claim by the Intergovernmental Panel on Climate Change that Himalayan glaciers would disappear by 2035, were “isolated incidents”, he said. “If you look at any area of science, you would be able to find odd examples like this. It doesn’t detract from the vast bulk of the conclusions,” he said.
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