The D.C. Circuit dismissed environmental groups' lawsuit seeking to vacate an EPA rule that implements the CAA's new source review (NSR) permitting scheme in nonattainment areas. The groups filed suit after EPA issued an energy company a PSD permit to build a waste incinerator in Arecibo, Puerto Ric...

The Ninth Circuit reversed a lower court decision vacating FWS' designation of critical habitat in Alaska for the polar bear, a threatened species, and reinstated the designation. The designation encompasses sea ice, terrestrial denning, and barrier island habitat. Oil and gas associations, several ...