A state court upheld the North Dakota Department of Health's decision to issue an air quality permit for construction of an oil refinery less than three miles from Theodore Roosevelt National Park. Environmental groups argued that the Department's decision to issue a synthetic minor source permit ra...

A district court denied EPA's motion to dismiss a lawsuit brought by several states alleging that the Agency failed to implement and enforce its 2016 Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills. The Agency argued that the CAA did not unequivocally waive sovereign imm...

The Arizona Supreme Court vacated a ruling that a Native American tribe sufficiently alleged standing to bring a public nuisance claim against a resort using reclaimed wastewater to make artificial snow on the San Francisco Peaks in northern Arizona. Before the lower court, the tribe argued that the...