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 letters ordered the districts and various farmers and businesses to stop diverting water from California's riv...

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 conservative energy group claimed that the renewable energy standard will harm out-of-state coal producers in violation of the C...