The Environmental Protection Agency filed a brief in the U.S. Court of Appeals for the District of Columbia Circuit August 17 saying that it acted within its Clean Air Act authority when it rescinded approval of Texas’ state implementation plan for failing to include provisions to address greenhouse gases. The agency’s decision was aimed at ensuring that industrial facilities were able to obtain the necessary prevention of significant deterioration permits, and it argued in its brief that Texas lacks standing to challenge the action because the state is not harmed by it.