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'...

A district court denied environmental groups' motion for summary judgment in a challenge to the Forest Service's approval of a gold exploration project in Caribou-Targhee National Forest. The groups argued the Service violated NEPA by failing to take a "hard look" at the potential effects exploratio...

A district court denied EPA's motion to dismiss a lawsuit challenging its failure to perform required ESA consultations with FWS and NMFS before approving the state of Washington's limits on aquatic cyanide in 1993, 1997, and 2007. An environmental group argued that EPA failed to complete ESA §7 co...

A district court denied summary judgment for oil and gas leasing proponents and the state of Alaska in a challenge to President Biden's Executive Order No. 13990 and actions DOI took to implement the order's directive to place a temporary moratorium on implementation of a leasing program in the Arct...

The Tenth Circuit affirmed a district court ruling upholding BLM's approval of a development project on state and federal land in southwestern Wyoming. Conservation groups argued BLM violated NEPA by failing to adequately consider impacts of the project on sage-grouse populations and pronghorn antel...

The Seventh Circuit affirmed summary judgment for the Army Corps of Engineers in a challenge to its decision to continue an over century-old project that involves building river training structures to maintain the navigable channel in the Middle Mississippi River. Environmental groups argued that th...

A district court granted a pipeline company's motion to preliminarily enjoin enforcement of an Iowa county zoning ordinance promulgated in response to the company's proposed carbon dioxide pipeline. The company argued the ordinance was preempted by the federal Pipeline Safety Act and by Iowa Code §...

A district court denied summary judgment for environmental groups in their challenge to the Army Corps of Engineers' approval of a navigation improvement project in San Juan Harbor in Puerto Rico. The groups sued the Corps, NMFS, and FWS, arguing they violated the ESA, NEPA, and the CWA. With respec...

The D.C. Circuit dismissed for lack of jurisdiction a challenge to two FERC orders approving construction and operation of a natural gas compressor station in Massachusetts. Residents, municipalities, and an environmental group petitioned for review of the orders—one granting the station owner's r...

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...