A California court issued a temporary restraining order preventing the state water board from enforcing "curtailment letters" it sent to four irrigation districts in the Central Valley.

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.

The Tenth Circuit upheld on constitutional grounds Colorado's mandate that 20% of the electricity that generators sell to Colorado consumers come from renewable sources.

A district court held that Indonesian villagers living near an energy corporation's natural gas development facility may go forward with their Alien Tort Statute claims for human rights abuses allegedly caused by security personnel at the site.