U.N. Draft Cites Humans in Recent Climate Shifts
April 5, 2007
The latest United Nations assessment of the role of humans in global warming has found with “high confidence” that greenhouse gas emissions are at least partly responsible for a host of changes already under way, including longer growing seasons and shrinking glaciers.
http://www.nytimes.com/2007/04/05/science/earth/05climate.html?_r=1&ref=science&oref=slogin