I found this statement in an old National geographic magazine in a waiting room. I thought that it added to the argument that the science involving global climate change is far from settled. I don't have permission to reprint it but here it is anyway.
October 2004 National Geographic
Page 1 "Who Knew"; "Climatology"; "Green Sahara" Paragraph eight;
" 'we are learning, and only in recent years, that some climate changes in the past have been as rapid as anything underway today', says Robert Geigengack, a University of Pennsylvania geologist."
One of the arguments is, that recent climate change is happening suddenly enough that it must be man caused. However, we see here that This scientist states that some climate change, here concerning the desertification of the Sahara, took place suddenly.
Saturday, January 16, 2010
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