The D.C. Circuit held that carbon emissions from gas-burning power plants should have been considered in federal regulators’ review of a Florida natural gas pipeline. Environmental groups and…

A district court held that New York's Zero-Emission Credit (ZEC) program is not preempted by federal law. In an effort to curb the effects of global warming, New York issued a Clean Energy…

The Iowa Supreme Court held that neighbors of an Iowa corn processing plant were properly certified as a class to pursue pollution claims against the operator. The neighbors filed a suit under…

The D.C. Circuit vacated an EPA final rule that exempted farms from reporting requirements for air releases from animal waste. In 2008 the EPA issued a final rule that generally exempts farms from…

A California Appeals Court upheld a state cap-and-trade regime against challenges from the state commerce board and affected industry players. In 2006, California passed the California Global…

The Fourth Circuit upheld over $22 million in damages that an energy company was ordered to pay to a Virginia utility because the coal supplied to a new power plant was of such poor quality it…

The Ninth Circuit held that BLM violated NEPA when it approved a proposed molybdenum mining operation near Eureka, Nevada. Environmental groups filed suit against BLM, challenging the agency'…

The Supreme Court of Texas held that the Texas Clean Air Act and the Act’s enforcement mechanisms in the Texas Water Code preempt a Houston air-quality ordinance. The Houston ordinance’s…

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…

A district court dismissed a nonprofit group's lawsuit seeking to halt EPA studies that expose humans to fine particulate matter. The challenged EPA conduct does not constitute final agency…