I've written before about the terrible weather that occurred during the little ice age, and how the bad weather was blamed on "witches" who were then burned at the stake. It reminds us of what is happening now, with calls for Nuremburg style trials for Anthropoligical Global Warming "deniers." This video is a good talk by a Harvard Astrophysist:

http://www.youtube.com/p.swf?video_id=ZfRqkweo5jo&eurl=&iurl=http%3A//sjl-static1.sjl.youtube.com/vi/ZfRqkweo5jo/2.jpg&t=OEgsToPDskJpHUbhqaC-wVqpCiRpBfsQ