Posted by Nigel Worthington on March 20, 2008, 8:56 am, in reply to "The Great Global Warming Hoax?"
78.143.198.X
It's a good paper - though I am not sure I like the style. I especially like the section on the effect of the sun and the solar cycles.
The Editor does himself a disservice in his opening paragraph:
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There is actually lots of proof using proxy data that these warm and cold periods existed in the Southern hemisphere too - see Section 1 of my paper:
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(page 4 to 9) Craig Idso summarises 15 scientific papers which use data from around the world that
indicate that the 9th to 14th Century AD was likely to have been 0.5-1.0 °C warmer than in 2007. These proxy data sets include measurements from dead tree trunks in Nevada and Quebec, the GRIP borehole in Greenland, a sediment core near Lisbon, in Peru, Japan and Southern Antarctica and a stalagmite in South Africa and the Austrian Alps. It was also known that in the MWP carbon dioxide in the atmosphere was 100 ppm less than now.>>
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