Paltridge, Garth
September 2004
Energy & Environment;2004, Vol. 15 Issue 5, p853
Academic Journal
The article focuses on a report of the Inter-Governmental Panel on Climate Change (IPCC) which was discussed at a meeting on climate change. The experts at the meeting discussed a new proxy record of the world's temperature over the last thousand years. It was based on the analysis of tree rings at a number of sites in the northern hemisphere. It became famously known as the "hockey stick." This was because the rise in measured temperature over the last hundred years seemed, by comparison with the proxy record, to be much greater than any changes over the previous 900 years. Canadian statisticians found that there had been errors and omissions in the report. When the analysis was done properly, the data suggest that the fifteenth century was much warmer than today.


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