Support WBURScientists: Biofuel Laws May Harm EnvironmentPlay04:42Download AudioRichard HarrisOctober 23, 2009 ShareA farmer harvests corn on a farm near Spring Mills, Pa. According to current biofuel laws, if you burn ethanol from corn in your car, the government doesn't count the carbon dioxide that comes out of the tailpipe as an actual carbon emission. (AP)
