http://topics.nytimes.com/top/news/scien...
http://www.ncdc.noaa.gov/oa/climate/glob...
Hope they help! But just wondering, is it for an assignment? 50% 2 Votes
http://www.edf.org/article.cfm?contentid...
Here%26#039;s a one page summary of the well regarded study below, but it may be too technical for you.
http://www.globalwarmingart.com/wiki/Ima... Meehl, G.A., W.M. Washington, C.A. Ammann, J.M. Arblaster, T.M.L. Wigleym and C. Tebaldi (2004). %26quot;Combinations of Natural and Anthropogenic Forcings in Twentieth-Century Climate%26quot;. Journal of Climate 17: 3721-3727 0% 0 Votes
This is a great link to a news article 25% 1 Vote
afp/080416/world/us_
china_climate_warming_environment 25% 1 Vote 0% 0 Votes
