The D.C. Circuit upheld an EPA regulation that requires automobile manufacturers to use "commercially available" fuel when testing the emissions of new vehicles under the CAA. Several producers of E30, a fuel that contains 30% ethanol, argued that a fuel shouldn't have to be commercially available i...

The Ninth Circuit upheld the National Marine Fisheries Service's (NMFS') designation of critical habitat for the southern distinct population of green sturgeon, a threatened species. The rule designated approximately 11,421 square miles of marine habitat, 897 square miles of estuary habitat, and hun...

A district court ordered Oklahoma to file a brief by July 16 explaining why the court should have jurisdiction over the state's lawsuit challenging EPA's proposed "Clean Power Plan" to reduce carbon dioxide emissions on a nationwide basis. Numerous states, including Oklahoma, recently filed a case i...