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The '''"hockey stick graph"''' is a fraudulent{{fact}} 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.  

The '''"hockey stick graph"''' is a fraudulent{{fact}} 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.