The Sixth Circuit dismissed environmental groups' petition to review air pollution control permits issued by Ohio's Environmental Protection Agency for two natural gas compressor stations along a natural gas pipeline that runs from Ohio to Michigan. The groups argued that the permits were invalid be...

A district court denied public interest groups' motion for partial summary judgment in challenging an Executive Order that required federal agencies to repeal two existing rules for each new rule promulgated. The groups argued they established associational standing based on injuries that two of the...

A district court dismissed a conservation group's suit to block the Department of Homeland Security from constructing a border wall near the National Butterfly Center in southern Texas. The group argued that the Department violated the Fourth Amendment by entering the Center without consent or warra...

A district court denied environmental groups' motion to preliminarily enjoin a pipeline company from continuing construction on an oil pipeline in the Atchafalaya Basin. The groups sought the injunction to prevent alleged irreparable harm to the basin, arguing that the company was violating key perm...

The Ninth Circuit affirmed a district court's dismissal of a constitutional challenge to California's 2015 Low Carbon Fuel Standard (LCFS). Farming groups argued that the state's LCFS violated the Commerce Clause and the federal structure of the Constitution by regulating extraterritorially. But the...

A district court ruled unconstitutional an Iowa statute that criminalized undercover investigations of slaughterhouses and other animal facilities. Environmental groups argued that the state statute impermissibly restricted their free speech under the First Amendment because it was a content- and vi...

The Arizona Supreme Court vacated a ruling that a Native American tribe sufficiently alleged standing to bring a public nuisance claim against a resort using reclaimed wastewater to make artificial snow on the San Francisco Peaks in northern Arizona. Before the lower court, the tribe argued that the...

A district court temporarily stayed proceedings in which a pipeline developer sought access to a North Carolina farm for construction of the Atlantic Coast Pipeline. The landowner sought to stay the pipeline developer's attempt to acquire eminent domain rights to his property to allow pending challe...

A district court declared unconstitutional a California law that regulates the recording of conveyances of federal public lands in the state. DOJ argued that the state law, which grants the State Lands Commission the right of first refusal on transfers of federal public lands, runs afoul of the doct...