http://forum.co2hog.com/forum/blogs/co2hog/archive/2007/08/19/man-s-affect-on-global-warming.aspx- small compared to nature’s work PUBLISHED: Tuesday, August 14, 2007 Excerpt: Today’s concerns about global warming should be seen in the light of the climate around 1000 AD. Vikings were farming Greenland. The climate of England permitted vineyards.enCommunityServer 2.1 SP2 (Build: 61129.2)