A district court dismissed a city's lawsuit against California state and local air districts challenging fees it must pay to mitigate wind-blown dust from a dry lake bed that exceed state and federal air standards. Section 42316 of the California Health and Safety Code authorized the district to ord...

The Sixth Circuit struck down the U.S. Army Corps of Engineers' reissuance of nationwide permit 21, which authorizes surface coal mining operations to discharge dredged and fill material into waters of the United States. An environmental group challenged the permit, alleging that the cumulative-impa...

The Ninth Circuit, in an amended opinion, denied an environmental group's petition challenging EPA's decision to grant two air permits authorizing exploratory drilling operations in the Arctic Ocean by a drillship and its associated fleet of support vessels. The permits require the drillship to comp...

A district court held that BLM violated NEPA when it sold four oil and gas leases on approximately 2,700 acres of federal land in Monterey and Fresno counties without considering impacts from hydraulic fracturing. The leases are located in California's Monterey Shale Formation, which is estimated to...

A district court held that EPA has no mandatory or nondiscretionary duty to make a determination as to whether lead emissions from general aviation aircraft engines using aviation gasoline endanger the public health or welfare under CAA §231(a)(2)(A). A finding that emissions cause or contribute to...