I definitely can't intelligently discuss this topic, but those participating in this thread might be interested in the latest issue (August/September 2004) of THE INDUSTRIAL PHYSICIST magazine (www.tipmagazine). I received this issue (paper magazine) a few days ago and immediately thought about this thread on the PICList. You should be able to get the PDF version of the article here: http://www.tipmagazine.com/tip/INPHFA/vol-10/iss-4/p20.html In the "Letters" section, there are a lot of web links that people might be interested in checking out. I'm happy to report that the links in the paper magazine are conveniently placed online: http://www.tipmagazine.com/tip/INPHFA/vol-10/iss-4/p4.html There's also an article in the "Features" section: Narrowing uncertainty in global climate change ---------------------------------------------- by Chris Forest, Mort Webster, and John Reilly "A series of linked computer models at MIT is being used to predict the likelihood of serious climate change with and without policies to stabilize atmospheric concentrations of carbon dioxide." There was also a previous article in the June/July issue (same magazine) titled: "Millennia of global warming". Best regards and happy reading, Ken Pergola -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics