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 Fifth Circuit affirmed, 2-1, a lower court ruling in favor of fishermen's challenge to NMFS regulations regarding offshore aquaculture in federal waters of the Gulf of Mexico. The fishermen argued that the regulations were invalid because they fell outside the agency's authority to regulate fish...

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...

A district court denied environmental groups' motion to preliminarily enjoin a commercial logging and road construction project in the Idaho Panhandle National Forests. The groups argued that the Forest Service violated the ESA by failing to request a species list from FWS and failing to prepare a b...

The D.C. Circuit vacated EPA's denial of New York's petition concerning cross-border pollution from nine upwind states. The state had asked EPA to find that power-generating and other facilities in the nine states were violating the CAA's "good neighbor" provision by producing emissions that contrib...

The D.C. Circuit granted in part and denied in part petitions to review EPA's attainment designations for its 2015 ozone NAAQS. Environmental groups, municipal governments, and the state of Illinois argued that the Agency failed to follow its own scientific and technical record when it decided that ...

The North Dakota Supreme Court affirmed a lower court ruling upholding the North Dakota Department of Environmental Quality's issuance of an air quality permit to construct a refinery. A conservation group argued the Department's omission of an enforceable permit limit for hazardous air pollutants (...

A district court granted in part summary judgment for nonprofit groups in a suit concerning a logging project in the Helena-Lewis and Clark National Forest. One group argued the project violated the Roadless Rule because the Forest Service was surreptitiously planning to construct new roads in an in...

A district court dismissed for lack of subject matter jurisdiction a suit concerning EPA's CAA obligations to regulate pollution from coke ovens. Environmental groups argued the CAA required EPA to perform a risk assessment every time it revised its technology-based standards for a hazardous polluti...