A coalition of environmental organizations are taking the Environmental Protection Agency to court over its failure to enforce the Clean Air Act's Regional Haze Rules, designed to reduce pollution in national parks including Grand Teton and Yellowstone. Rob Joyce - energy organizer with the Sierra Club's Wyoming Chapter, one group behind the lawsuit - said states and owners of major polluting facilities have had plenty of time to create a plan to comply with federal law. "When states like Wyoming choose to ignore deadlines for things like the regional haze rule, which protects our wild places from air pollution, then we need the EPA to step in and hold them accountable," said Joyce. " ...