UPDATE 1-After Jackson, EPA faces decisions on US fracking boom
December 28, 2012 at 16:25 PM EST
NEW YORK, Dec 28 (Reuters) - The past four years of U.S. environmental regulation was marked by a crackdown on emissions that angered coal miners and power companies. Over the next four, the new head of the Environmental Protection Agency will have to decide whether to take on an even larger industry: Big Oil.