The D.C. Circuit affirmed a district court order remanding to state court a climate liability suit brought against oil and gas companies. The District of Columbia initially sued in state court, arguing the companies deceived consumers about the causal link between fossil fuel usage and climate chang...

A district court granted in part summary judgment for environmental groups in a challenge to a National Park Service (NPS) agreement with Miami-Dade County to facilitate development of a waterpark, hotel, and retail area near the Miami Zoo. The groups argued NPS violated NEPA and the ESA by failing ...

The Ninth Circuit reversed summary judgment for FWS in a challenge to its biological opinion (BiOp) concerning water pumping impacts on ESA-protected species in Arizona's San Pedro River Basin. An environmental group argued the BiOp, which concluded that a conservation easement proposed to compensat...

A district court granted in part and denied in part environmental groups' motion to preliminarily enjoin the state of Montana's wolf trapping and snaring season as authorized by recently approved regulations. The groups argued the regulations, which expanded both the length of the season and the geo...

A district court granted FWS' motion for partial voluntary remand in a challenge to its decision to list the eastern black rail as threatened instead of endangered. Environmental groups argued FWS' decision, and related determination that designation of critical habitat for the rail was "not prudent...

A district court granted in part and denied in part federal agencies' motion for remand and partial vacatur in a challenge to a decision granting a right-of-way for construction of a new highway through the Red Cliffs National Conservation Area in Utah, a critical habitat for the Mojave Desert torto...

In an unpublished opinion, the Ninth Circuit affirmed a district court ruling that granted two cities' motion to remand to state court climate liability suits brought against five oil and gas companies. The cities of San Francisco and Oakland initially sued the companies in state court, arguing the ...

A district court denied fishing groups' motion to remand a climate liability lawsuit against oil and gas companies. The groups initially sued in state court, seeking damages for lost fishing opportunities allegedly caused by climate change. The companies removed the suit to federal court under the C...

A district court denied a biologist's motion to preliminarily enjoin flood control releases from the Coyote Valley Dam into the Russian River to protect ESA-listed salmon species. The biologist sought to enjoin the Army Corps of Engineers from making flood control releases unless it determines that ...

The Hawaii Supreme Court affirmed a lower court order denying oil and gas companies' motions to dismiss a climate misinformation suit brought by the city and county of Honolulu and the Honolulu Board of Water Supply. Plaintiffs argued the companies knowingly misled the public about the dangers of bu...