EPA Declares Greenhouse Gases A Danger To Human Health

DAVIE, FL - DECEMBER 07: Kevin Doyle from Mad Hatter Muffler shop works on replacing a catalytic converter on a truck on December 7, 2009 in Davie, Florida. The Environmental Protection Agency announced today that greenhouse gases endanger people's health and need to be regulated. This would involve among other measures the regulating of the tailpipe carbon dioxide emissions of cars, which are a large contributor to greenhouse gases. (Photo by Joe Raedle/Getty Images)