Gulf Dead Zone Linked To Ethanol Production, May Be Worse Than Oil Spill

07/06/2010 12:02 pm ET | Updated May 25, 2011

While the BP oil spill has been labeled the worst environmental catastrophe in recent U.S. history, a biofuel is contributing to a Gulf of Mexico "dead zone" the size of New Jersey that scientists say could be every bit as harmful to the gulf.