Saturday, January 27, 2007

Prehistoric climate change

Another one for those amongst you who are intersted in the role of climate change on early prehistory. The latest issue of New Scientist (27th January 2007, p.12) looks at climate change in terms of causes other than Milankovitch cycles, summarizing an argument by Robert Ehrlich who suggsts that Milankovitch cycles are not large enough to create ice ages, even factoring in feedback mechanisms on Earth. As usual with climate change models, the idea has a number of detractors.

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