The Fourth Circuit upheld a district court order that remanded to state court the city of Baltimore's climate change case against oil companies. The city alleged it sustained climate change-related injuries, including an increase in sea levels, storms, floods, heatwaves, droughts, and extreme precip...

The D.C. Circuit dismissed as untimely Maryland's petition to review the Federal Aviation Administration's (FAA's) approval of new flight paths to Washington National Airport. The state argued the new flight paths, which concentrated aircraft noise over its public lands, should be vacated because th...

The Court of Federal Claims held that the U.S. government was not liable for the flooding of homes near two dams managed by the U.S. Army Corps of Engineers in Houston during Hurricane Harvey. Property owners downstream of the dams argued that the government flooded their lands by opening the dams' ...

The Fifth Circuit held that the U.S. Army Corps of Engineers had not waived its sovereign immunity from Louisiana's lawsuit alleging that the Corps failed to maintain the Gulf Intracoastal Waterway within authorized parameters under the River and Harbor Improvements Act (RHIA). Louisiana argued that...

The Court of Federal Claims held the U.S. government liable for the flooding of homes and businesses near two dams managed by the U.S. Army Corps of Engineers in Houston during Hurricane Harvey. Property owners argued that the government improperly used their land to retain floodwaters during the hu...

A district court denied public interest groups' motion for partial summary judgment in challenging an executive order that requires federal agencies to repeal two existing rules for each new rule promulgated. The groups argued they had associational standing based on injuries that two of their membe...

A district court preliminarily enjoined Iowa from enforcing a 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 c...

A district court denied a neighborhood group's request to temporarily block bison hunting near Yellowstone National Park. The group argued that NPS and USDA violated NEPA when they authorized an annual bison hunt at a location on the edge of the park called Beattie Gulch, and sought a temporary rest...

The U.S. Claims Court granted in part and denied in part the U.S. government's motion for summary judgment in a challenge against FWS for rerouting spring waters that had previously flowed through church property into a restoration channel in an effort to save a native fish species. The church argue...

A district court dismissed a lawsuit brought by a Hawaiian resident alleging that an early start to a county construction project harmed two endangered species—the Hawaiian hawk and Hawaiian hoary bat—in violation of the ESA. The resident argued that the county violated its EIS by allowing const...