Earth hottest it's been in 2,000 years (AP)
 

AP - The Earth is running a slight fever from greenhouse gases, after enjoying relatively stable temperatures for 2,000 years. The National Academy of Sciences, after reconstructing global average surface temperatures for the past two millennia, said Thursday the data are "additional supporting evidence ... that human activities are responsible for much of the recent warming."]]>{br}{br}View the Entire Article{br}{br}Click Here to Launch in a new Window