07/18/12
Probability Of Extreme Weather Rising Due To Human Inaction
Heat waves like the one affecting the U.S. are 20 times more likely than in the 1960s, according to researchers at the National Climatic Data Center in Asheville, North Carolina.
Source: http://www.npr.org/2012/07/13/156731302/climate-change-ups-odds-of-heat-waves-drought