The Third Circuit held that the CAA does not preempt state law tort claims brought by private property owners against a source of pollution located within the state. The case arose after a group of 1,500 residents who live within one mile of a coal-fired power plant filed suit against the facility u...

The D.C. Circuit denied petitions to downlist the straighthorned markhor, a subspecies of wild goat found in Pakistan, from endangered to threatened. The petitioners—safari clubs, hunters, and international conservationists—argued that FWS violated the ESA and APA by failing to issue a 12-month ...

The D.C. Circuit remanded EPA's "maximum achievable control technology" (MACT) standards for sewage sludge incinerators under CAA §129. The court upheld EPA's authority to regulate sewage sludge incinerators under §129, deferring to the Agency's interpretation of "solid waste incineration unit" as...

The D.C. Circuit denied petitions challenging EPA's revised NESHAPs for primary lead processing operations. Despite petitioners' argument to the contrary, EPA's use of the lead NAAQS as a benchmark in setting a NESHAP for lead compounds does not violate the CAA's prohibition on regulating elemental ...

The Ninth Circuit affirmed a lower court decision rejecting claims that the National Marine Fisheries Service (NMFS) violated the ESA when it placed commercial fishing restrictions on sub-regions of the Pacific Ocean inhabited by the endangered western distinct population segment of Stellar sea lion...