The U.S. Supreme Court struck down portions of the Los Angeles port's "Clean Truck Program," which was designed in part to reduce emissions related to port operations, including emissions from trucks. The concession agreements implementing the plan set forth a number of provisions covering, among ot...

The U.S. Supreme Court held that Oklahoma statutes that favor in-state water appropriation permit applicants over out-of-state permit applicants do not violate the Commerce Clause and are not preempted by the Red River Water Compact—an interstate water compact that allocates water among Texas, Okl...

A California court validated a settlement agreement and 11 related agreements concerning the conservation, transfer, and exchange of Colorado River water diverted for beneficial consumptive use among Southern California water agencies. The agreements were negotiated and executed to resolve longstand...

The Eleventh Circuit upheld the dismissal of a Native American tribe's lawsuit challenging the government's management of the Central and Southern Florida Project for Flood Control in the Everglades. The tribe complained that the project diverts excessive flood waters over tribal lands, in part to p...

A district court denied a motion to reconsider its earlier dismissal of a lawsuit seeking declaratory and injunctive relief based on the federal government's alleged failure to reduce greenhouse gas emissions. Plaintiffs—five teenage citizens and two environmental groups—argued that each of the ...