Global Warming Graph Attacked By Study

A key piece of evidence in climate change science was slammed as “exaggerated” on Wednesday by the UK’s leading statistician, in a vindication of claims that global warming sceptics have been making for years.

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.

“It used a particular statistical technique that exaggerated the effect [of recent warming],” he said.

The criticism came as part of a report published on Wednesday that found the scientists behind the “Climategate” e-mail scandal had behaved “honestly and fairly” and showed “no evidence of any deliberate scientific malpractice”.

The e-mails were hacked last autumn from the Climatic Research Unit at the University of East Anglia. They caused a storm, as they appeared to show scientists manipulating and concealing data…