The Montana Supreme Court, 5-2, reversed a lower court order that revoked the Montana Department of Environmental Quality's (MDEQ's) approval of a permit for construction and operation of a proposed copper mine. Conservation groups argued MDEQ's issuance of the permit violated the state's Metal Mine...

A magistrate judge recommended that a challenge to the city of Portland's amendments to its land use code imposing certain limits on the construction of new or expanded bulk fossil fuel terminals be dismissed. The state of Montana and fuel industry trade groups argued the amendments violated the dor...

A district court granted summary judgment for a conservation group in a challenge to the Natural Resource Conservation Service's (NRCS') 2020 rule regarding certification of maps delineating wetlands. The group argued NRCS changed its policy regarding pre-1996 wetland certifications without exercisi...

The Fourth Circuit affirmed a district court order remanding to state court two climate deception lawsuits against oil and gas companies. City and county governments in Maryland initially sued in state court, alleging the companies used and promoted fossil fuel products while knowing, concealing, an...

A district court granted in part and denied in part a tribe's motion for partial summary judgment in a lawsuit concerning a hydroelectric dam on the Puyallup River in Washington. The tribe argued the dam operator's installation of a temporary rock dam/spillway unlawfully harmed and harassed Chinook ...

A district court denied a mining company's motion for partial summary judgment in a lawsuit concerning pollution from the company's British Columbia smelter along the Upper Columbia River. Tribal members sought natural resource damages for contamination of the river. The company argued the members' ...

A district court granted the state of Vermont's motion to remand to state court a climate misinformation suit brought against fossil fuel companies. The state initially sued in state court, arguing the companies violated the Vermont Consumer Protection Act by failing to inform consumers about the im...

A district court granted in part environmental groups' motion for summary judgment in a challenge to various agency actions relating to EPA's approval of the state of Florida's application to assume permitting authority under §404 of the CWA. The groups argued EPA and FWS violated the ESA because n...

The Tenth Circuit, 2-1, affirmed in part and reversed in part summary judgment for an oil and gas company in a lawsuit brought by a cattle ranch in Oklahoma. The ranch brought several tort claims, arguing the company's pipeline leaked and contaminated its property. A district court concluded the con...