The Fifth Circuit denied a petition to review a CWA permit issued by the Army Corps of Engineers authorizing development of a natural gas pipeline and export facility in south Texas. A group of shrimpers and fishermen argued the permit violated the CWA by failing to show that the approved project wa...

The D.C. Circuit vacated a license issued by FERC for operation of a hydroelectric dam on the Susquehanna River in Maryland. The state of Maryland issued a CWA §401(a)(1) certification to the dam's operator in 2018 with conditions. The operator challenged the certification, and the parties reached ...

A district court granted the District of Columbia's motion to remand to state court a consumer protection lawsuit against energy companies. The District sued in state court, arguing the companies knowingly misrepresented the effects of fossil fuel products to consumers through misleading advertiseme...

A district court denied a state prison's motion for partial summary judgment in a CWA citizen suit brought by a California county. The prison argued the county did not have statutory standing to sue under the CWA because the Act's definition of "citizen" did not include counties. The court concluded...

A district court on remand granted San Francisco's and Oakland's motion to remand to state court the cities' lawsuits alleging that six oil companies produce and promote products that create a public nuisance—sea-level rise—when combusted. The court previously denied the motion, finding that eva...

The Eighth Circuit affirmed a district court's dismissal of states' challenge to the Biden Administration's interim estimates on the social costs of greenhouse gas emissions. The states had sought to preliminarily enjoin federal officials, departments, and agencies from using the estimates "as bindi...

The Fifth Circuit affirmed a district court's order remanding back to state court a lawsuit brought against oil companies concerning their operations during World War II. Louisiana parishes initially filed suit in state court, arguing the companies had violated Louisiana's State and Local Coastal Re...

The New Mexico Supreme Court overturned regulations promulgated by the State Game Commission in 2017 that outlined a process for landowners to obtain a certificate allowing them to close public access to segments of public water flowing over private property. Outdoor recreation advocates challenged ...

The Ninth Circuit vacated FERC orders that held the California Water Resources Control Board had waived its authority to ensure certain hydroelectric projects complied with state water quality standards. The Board and environmental groups petitioned the court to review FERC's findings that the Board...

The D.C. Circuit vacated a district court's grant of summary judgment to EPA in a challenge to the Agency's approval of a permitting program for coal ash disposal facilities in Oklahoma. Environmental groups challenged EPA’s approval on several grounds under RCRA and the APA, and the district cour...