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Providing Insight
Into Climate Change
Temperature History
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38 Articles

Correlation Between CO2 and Global Temperatures Not There

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This ICECAP article with graphs shows there is no correlation between global temperatures and CO2 over the last decade.

The Destruction of the Hockey Stick

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This section describes the problems with the temperature history based on tree rings from Mann, Bradley and Hughes that was used by the IPCC in the third assessment report. The hockey stick shape of the temperature data was due to mathematical errors, inappropriate selection of data and other defects.

The Hockey Stick: A New Low in Climate Science

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John Daly reviews the hockey stick affair and the attempt by the IPCC to eliminate climate variability from Earth's history. He presents evidence that the Medieval Warm Period and the Little Ice Age were real and global in extent.

The IPCC's Contradictory Global Temperature Data

A presentation by Norm Kalmanovitch to the FoS Annual General Meeting, Calgary, June 9, 2010

Hockey Sticks, Principal Components and Spurious Significance

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Stephen McIntyre and Ross McKitrich show that the Mann et al 1998, 1999 hockey stick shaped temperature reconstruction using tree ring data was seriously flawed. In spite of hundred of studies that previously indicated a varying climate history, the IPCC tried to use the Mann study to change history. The authors show that Mann's faulty principal component analysis "mines" for hockey stick shapes in the data.

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