The Tenth Circuit affirmed dismissal of ranching groups' challenge to FWS' designation of critical habitat for the endangered New Mexico meadow jumping mouse. The groups argued FWS' methodology for analyzing economic impacts of the designation violated the ESA and court precedent, that the Service f...

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 Ninth Circuit affirmed summary judgment for FWS in a challenge to its barred owl removal experiment, which was designed to protect the threatened northern spotted owl. Environmental groups argued FWS violated the ESA by issuing a permit that failed to provide a "net conservation benefit," and NE...