A district court denied a landowner's motion to temporarily enjoin a natural gas pipeline developer from blasting aquifers along a route approved by FERC that crossed his property. The landowner argued the court had jurisdiction because he was not seeking to modify or set aside FERC's certificate fo...

A district court denied environmental groups' motion for partial summary judgment in a CAA citizen suit brought against a steel company concerning hydrogen sulfide and sulfur dioxide emissions at its production facilities in Pennsylvania. The groups argued the company repeatedly violated the CAA, th...

A district court denied environmental groups' motion for a temporary restraining order in a challenge to BLM's authorization of livestock grazing on pastures containing research natural areas (RNAs). The groups argued BLM's regulations required fencing to be installed to section off the RNAs so they...

A district court granted in part and denied in part conservation groups' motion for summary judgment in a challenge to NMFS' 2019 decision not to list the alewife and blueback herring as threatened under the ESA. The groups argued that NMFS failed to adequately account for climate change-related har...

The Ninth Circuit, 2-1, affirmed in part and reversed in part summary judgment for DOI in a challenge to its approval of a mine expansion proposal in Montana. Environmental groups argued DOI violated NEPA by failing to take a "hard look" at the actual environmental effects of the expansion's greenho...

The U.S. Supreme Court, 5-4, granted states' and industry groups' application for an emergency stay of a district court ruling that had vacated the 2020 Clean Water Act 401 Certification Rule. In a dissenting opinion, Justice Kagan asserted the states and groups had failed to show they would suffer ...