A district court granted in part and denied in part environmental groups' motion for summary judgment in a challenge to the Forest Service's and FWS' decisions concerning a revised forest plan for the Flathead National Forest.

The Ohio Supreme Court affirmed an appellate court ruling in a lawsuit concerning Volkswagen’s efforts to cheat U.S. diesel emissions tests. Ohio sued the company, arguing its post-sale tampering with emissions control systems violated the state’s Air Pollution Control Act (APCA).

The U.S. Supreme Court held, 5-4, that the Natural Gas Act (NGA) authorizes FERC certificate holders to condemn all necessary rights-of-way, whether owned by private parties or states, in a lawsuit concerning construction of a 116-mile natural gas pipeline from Pennsylvania to New Jersey.

The Seventh Circuit affirmed dismissal of a CWA citizen suit brought against the owner of a coal-fired power plant in Illinois.