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Line 1: − + − − The UN climate panel ([[IPCC]]) decided to stop using the traditionally accepted proxy estimates, which had shown a distinct (and naturally caused) [[Medieval Warm Period]] followed by a [[Little Ice Age]]. Without giving any reason for this change, they elevated recent PhD grantee [[Michael Mann]] (based at the highly liberal [[University of Massachusetts - Amherst]]) to a lead author of one of their assessments. Line 9:
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The '''"hockey stick graph"''' is a reconstruction of the Earth's atmosphere temperature from various proxies such as tree rings, superimposed on the record of thermometer readings from ground-based weather stations. The proxy estimates go back 1,000 years, while the thermometer readings date from 1850.
The '''"hockey stick graph"''' is a fraudulent reconstruction of the Earth's atmosphere temperature created by [[Michael Mann]] from various proxies such as tree rings, superimposed on the record of thermometer readings from ground-based weather stations. It was used to justify the [[anthropogenic global warming theory]] (AGW), but the fraud was exposed by two Canadian statistics experts.
Mann's graph, which was shaped like a hockey stick, portrayed temperatures as steadily declining since medieval times and then sharply rising in the last century and a half. Notably, his reconstruction fueled claims that 1998 and following years had the highest temperatures in 1,000 years.
Mann's graph, which was shaped like a hockey stick, portrayed temperatures as steadily declining since medieval times and then sharply rising in the last century and a half. Notably, his reconstruction fueled claims that 1998 and following years had the highest temperatures in 1,000 years.
Eventually, McIntyre and McKitrick learned enough about Mann's data and methods to discover where he went wrong. But the political climate was such that it was very difficult for the correct information to find a publisher.
Eventually, McIntyre and McKitrick learned enough about Mann's data and methods to discover where he went wrong. But the political climate was such that it was very difficult for the correct information to find a publisher.
The proxy estimates go back 1,000 years, while the thermometer readings date from 1850.
The UN climate panel ([[IPCC]]) decided to stop using the traditionally accepted proxy estimates, which had shown a distinct (and naturally caused) [[Medieval Warm Period]] followed by a [[Little Ice Age]]. Without giving any reason for this change, they elevated recent PhD grantee [[Michael Mann]] (based at the highly liberal [[University of Massachusetts - Amherst]]) to a lead author of one of their assessments.
==See also==
==See also==