The First Circuit amended a previous ruling vacating an air permit issued by the Massachusetts Department of Environmental Protection (MDEP) for a proposed natural gas compressor station that is part of a pipeline connecting the northeastern United States and Canada. The court had found that MDEP fa...

A district court denied the U.S. government summary judgment in a lawsuit concerning California's cap-and-trade agreement with Quebec. The government argued the agreement was conflict preempted by the foreign affairs doctrine because it created an obstacle to the effectuation of the Global Climate P...

A district court permanently enjoined a California Proposition 65 warning requirement on the weedkiller glyphosate. Agribusiness groups argued the law, which requires warning labels for products containing chemicals known to California to cause cancer, as applied to glyphosate compelled speech under...

The Federal Circuit reversed a Court of Federal Claims ruling that the U.S. government was liable for flooding private properties when it raised the water level of a lake in Mississippi to prevent a nearby levee from breaching. Landowners argued that raising the water level of the lake, which subseq...

A district court ruled unconstitutional provisions of a North Carolina statute that restricted undercover investigations of facilities and farms where animal testing or processing takes place. Nonprofit groups argued that provisions of the statute violated the First Amendment because they failed the...