A district court granted states' motion for summary judgment in a lawsuit concerning EPA's duty to limit air pollution drifting from upwind states into northeastern states. Connecticut, Delaware, Massachusetts, New Jersey, and New York argued that EPA failed to fulfill a nondiscretionary duty under ...

The Ninth Circuit reversed, 2-1, a lower court ruling denying a request to preliminarily enjoin a logging project in the Mendocino National Forest. An environmental group argued the Forest Service improperly determined that the project qualified for a categorical exclusion (CE) for road repair and m...

The Fifth Circuit vacated and remanded a lower court decision that imposed penalties against an oil company for alleged CAA permit violations at its industrial complex in Baytown, Texas. Environmental groups filed a CAA citizen suit against the company, alleging violations that occurred thousands of...

The D.C. Circuit stayed a lower court ruling that ordered the Dakota Access Pipeline to be shut down and emptied of oil within 30 days. As to the pipeline company's motion to stay the order vacating the Army Corps of Engineers' issuance of an easement under the Mineral Leasing Act, however, it found...