The solar impact on global warming may be greater than the Stanford article assumes due to cosmic rays. Also cosmic rays from other sources may have an impact. See: http://www.sciencedaily.com/releases/2002/07/020731080631.htm http://www.newscientist.com/article.ns?id=dn6270 http://www.scienceagogo.com/news/20030713212408data_trunc_sys.shtml http://biocab.org/Cosmic_Rays_Graph.html#anchor_45 http://www.msnbc.msn.com/id/15391047/ http://www.timesonline.co.uk/tol/news/uk/article1363818.ece -----Original Message----- From: utah-astronomy-bounces+djcolton=piol.com@mailman.xmission.com [mailto:utah-astronomy-bounces+djcolton=piol.com@mailman.xmission.com] On Behalf Of Kurt Fisher Sent: Thursday, May 24, 2007 9:58 AM To: utah-astronomy@mailman.xmission.com Subject: [Utah-astronomy] Variable Sun? Kim asked:
Note: The following is NOT a discussion of global warming but of historic evidence for a variable Sun. So, please no one take offense. . . . . Does anyone know of reliable observations of changes in the Sun's output that might have been made by earlier cultures, that is, other than the Maunder Minimum?
Kim, You may find this webpage at the Standford Solar Center of interest on solar variability: http://solar-center.stanford.edu/sun-on-earth/glob-warm.html "Ancient Observations Link Changes in Sun's Brightness and Earth's Climate" by Kevin D. Pang and Kevin K. Yao; EOS, Transactions of the American Geophysical Union, Volume 83, number 43, 22 October 2002, pages 481+. Marriott Library carries EOS. - Kurt _______________________________________________ Sent via CSolutions - http://www.csolutions.net _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.utahastronomy.com