Global warming may be twice as bad as previously expected

Global warming will be twice as severe as previous estimates indicate, according to a new study published this month in the Journal of Climate, a publication of the American Meteorological Society.

The research, conducted by the Massachusetts Institute of Technology (MIT), predicts a 90% probability that worldwide surface temperatures will rise more than 9 degrees (F) by 2100, compared to a previous 2003 MIT study that forecast a rise of just over 4 degrees.

By Doyle Rice, USA TODAY

Full Story: http://www.usatoday.com/tech/science/environment/2009-05-20-global-warming_N.htm