A district court granted Texas' motion to preliminarily enjoin the 2015 Clean Water Rule in Louisiana, Mississippi, and Texas. The state argued that implementing the rule would require it to spend significant time and taxpayer resources attempting to determine how the U.S. Army Corps of Engineers wi...

A district court issued a temporary restraining order on the scheduled opening of grizzly bear hunting in Idaho and Wyoming. A Native American tribe argued that FWS violated the ESA when it removed the Greater Yellowstone Ecosystem grizzly bear from the list of threatened species, and sought to rest...

A district court vacated and set aside FWS' 2015 decision not to list an isolated population of greater sage grouse as threatened under the ESA. The court's ruling follows an order previously issued by that court granting summary judgment when it concluded that the agency's decision was arbitrary an...

The Third Circuit denied review of the Pennsylvania Department of Environmental Protection's decision to grant a CWA §401 certification for a natural gas pipeline project. Environmental groups argued that the department acted arbitrarily and capriciously by issuing a §401 certification that was im...

The Ninth Circuit reversed in part a district court's summary judgment that upheld FWS' decision not to list the arctic grayling as an endangered or threatened species under the ESA. Environmental groups argued that FWS erred in considering only the current range of the arctic grayling when determin...