An Arizona court overturned the state's issuance of an air permit for a proposed open-pit copper mine. An environmental group argued that the state's approval of the permit was arbitrary and capricious because the mine has the potential to violate NAAQS. They also claimed that the mine's modeling re...

The California Supreme Court reversed a lower court decision that a developer's proposal to demolish an existing home and build a 10,000 square-foot single-family home on the lot may not be categorically exempt from environmental review under the California Environmental Quality Act (CEQA). After th...