The Ninth Circuit held that the FWS' determination that a proposed mining project in northwest Montana would result in "no adverse modification" to critical bull trout habitat and…

A district court upheld a NMFS biological opinion (BiOp) concluding that EPA's registration decisions under FIFRA for three insecticides—chlorpyrifos, diazinon and malathion—were likely to…

A district court held that the FWS violated NEPA, but not the ESA, when it issued a special rule that specifies the protective mechanisms that apply to the polar bear as a result of its threatened…

A district court upheld the FWS's determination that sport-hunted polar bear trophies may no longer be imported into the United States under the Marine Mammals Protection Act (MMPA) as of the…

A district court held that BLM's EISs associated with the Craters of the Moon and Pinedale resource management plans (RMPs) failed to adequately analyze impacts to the sage-grouse in…

A district court, in a 279-page opinion, held that NOAA-Fisheries' 2009 biological opinion (BiOp) and reasonable and prudent alternative (RPA) addressing Central Valley Project and State…

The Seventh Circuit denied various states' motion to issue a preliminary injunction compelling the U.S. Army Corps of Engineers to prevent the emigration of invasive silver and bighead carp…

The Ninth Circuit upheld the denial of animal rights groups' motion to preliminarily enjoin DOI from rounding up, destroying, or auctioning off wild horses and burros in the Twin Peaks Herd…

The D.C. Circuit upheld a lower court decision dismissing an environmental group's action challenging FWS' and the National Park Service's plan for managing elk and bison…

A district court upheld the constitutionality of an appropriations rider that reinstated an FWS rule that removed ESA protections for the Northern Rocky Mountain gray wolf in all areas outside of…