Greenwire: Industry groups, conservative think tanks, lawmakers and three states filed 16 court challenges to U.S. EPA’s "endangerment" finding for greenhouse gases before yesterday’s deadline, setting the stage for a legal battle over federal climate policies. Filing petitions yesterday were the Ohio Coal Association, the Utility Air Regulatory Group, the Portland Cement Association, the state of Texas and the Competitive Enterprise Institute. Another was filed by a coalition that includes the …