The Supreme Court of Alaska held that the state's Department of Natural Resources should have provided public notice before issuing land and water use permits allowing intensive mineral exploration in the prospective Pebble Mine.

The Supreme Court of Alaska reversed a lower court decision that plaintiffs challenging land and water use permits allowing intensive mineral exploration in Alaska's prospective Pebble Mine had "sufficient economic incentive" to warrant the imposition of attorney fees against them.

The D.C. Circuit held that energy companies lack standing to challenge EPA's determination that carbon dioxide (CO2) streams injected into Class VI wells for the purpose of geologic sequestration constitute "solid waste" subject to RCRA.

The D.C. Circuit denied several petitions for review challenging aspects of an EPA rule that provides procedures for classifying non-hazardous secondary materials as RCRA "solid waste" for the purpose of CAA emission standards for incinerators and other combustion units.

The Tenth Circuit held the U.S. Army Corps of Engineers did not violate NEPA, the CWA, or nationwide permit (NWP) 12 when it allowed an energy company to build a 485-mile oil pipeline from Oklahoma to Texas under the general permit.