RE: [asa] Effect of Solar variability

Today Nicola Scafetta is giving a colloquium in our physics department. There were a flurry of letters to the editor of Physics Today (October 2008 issue), where Nicola's Opinion article was published in the March 2008, which you posted. Also, an article appeared in January 2009 in Physics Today disputing Nicola's conclusions, "Solar variability does not explain late-20th-century warming," by Duffy, et al.
Moorad

From: asa-owner@lists.calvin.edu [mailto:asa-owner@lists.calvin.edu] On Behalf Of William Hamilton
Sent: Wednesday, February 11, 2009 8:25 AM
To: Asa@calvin.edu
Subject: [asa] Effect of Solar variability

I recently came across the following article:

http://www.google.com/url?sa=t&source=web&ct=res&cd=2&url=http%3A%2F%2Fwww.fel.duke.edu%2F~scafetta%2Fpdf%2Fopinion0308.pdf&ei=ss2SSZ2UEqGbtwex79TXCw&usg=AFQjCNHOURrs__u1Zbazc3NBB7JsCIuyuQ&sig2=YKk1hF0U8FTaDN42uvWtmg

In it Bruce J West, (Chief Scientist, Mathematics, Army Research Office) claims he has developed models that show that 69% of the climate change since 1900 can be attributed to solar variation. Have any of you climate change experts seen this?

--
William E (Bill) Hamilton Jr., Ph.D.
Member American Scientific Affiliation
Austin, TX
248 821 8156
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