A state court held unconstitutional a provision of the Montana Environmental Policy Act that prohibited state agencies from considering the impacts of greenhouse gas (GHG) emissions on climate change in environmental reviews. A group of youths challenged the prohibition, arguing it was causing or co...

A district court dismissed a challenge to President Biden's redesignation of the Bears Ears and Grand Staircase-Escalante National Monuments. The state of Utah and two counties argued the president exceeded his authority under the Antiquities Act by enlarging the two monuments via proclamations, and...

The D.C. Circuit dismissed five states' petition to review EPA's extension of a compliance deadline for a revised national drinking water regulation, which in turn extended the deadline for states to enforce conforming regulations to their own. The states argued the extension would cause their resid...

The Minnesota Supreme Court affirmed in part and reversed in part an appellate court ruling in a challenge to the Minnesota Pollution Control Agency's (MPCA's) decision to issue an NPDES permit for a proposed mine and processing plant to extract copper, nickel, and precious metals in northeastern Mi...

A district court granted environmental groups' motion for a preliminary injunction in a challenge to FWS' decision to install a permanent pipeline for Arctic grayling in Red Rock Lakes Wilderness in southwestern Montana. The groups argued the decision violated the Wilderness Act by ignoring the Act'...

The Ninth Circuit, 2-1, denied the city of San Francisco's challenge to an EPA order denying review of the city's NPDES permit for a combined sewer system and wastewater treatment facility. The city argued EPA violated the CWA by including in the permit two general narrative prohibitions on discharg...

The D.C. Circuit reversed summary judgment for Oregon counties, trade groups, and timber companies in five lawsuits concerning President Obama's expansion of the Cascade-Siskiyou National Monument. Plaintiffs argued that by outlawing logging on land included in the monument through Proclamation 9564...

A district court granted EPA's and the Army Corps of Engineers' motion to stay Texas' and Idaho's challenge to the Biden Administration's 2023 rule revising the definition of "waters of the United States" under the CWA. The court stayed the suit until publication in the Federal Register of the agenc...

The Tenth Circuit affirmed denial of conservation groups' claims in a lawsuit concerning the Bureau of Reclamation's decision to sign a water contract allowing the state of Utah to draw from reservoir releases rather than the Green River and its tributaries. The groups argued the Bureau violated NEP...

A district court granted the city of Charleston's motion to remand to state court its lawsuit against fossil fuel companies for allegedly contributing to climate change by producing and selling fossil fuel products while deceiving consumers and the public about the dangers associated with them. The ...