Excellent article and excellent point. The drought of the 1490s is believed to have destroyed the Anasazi culture. Of course, it was caused by all those ancient people smoking up the atmosphere with their camp fires .... On Tuesday, May 6, 2014 9:45 PM, "deepsky100@msn.com" <deepsky100@msn.com> wrote: Shove this in your climate modeling http://www.sciencedaily.com/releases/2014/05/140501101123.htm#.U2msJN5LqLw.e... --- This message was sent by deepsky100@msn.com via http://addthis.com. Please note that AddThis does not verify email addresses. Make sharing easier with the AddThis Toolbar: http://www.addthis.com/go/toolbar-em To stop receiving any emails from AddThis, please visit: http://www.addthis.com/privacy/email-opt-out?e=jnrs8fjttOTq8evq9.r0_Nno.Oz16... _______________________________________________ Utah-Astronomy mailing list http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Send messages to the list to Utah-Astronomy@mailman.xmission.com The Utah-Astronomy mailing list is not affiliated with any astronomy club. To unsubscribe go to: http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Then enter your email address in the space provided and click on "Unsubscribe or edit options".