"A bit of news about the melting of the Arctic waterways associated with climate change: Gazprom, the Russian energy giant, says it recently completed the world’s first liquefied natural gas cargo delivery through the Arctic Northern Sea Route. Escorted by Russian nuclear icebreakers, the giant L.N.G. carrier Ob River went through the waters of the Barents and Kara seas and then through an icy passage between the Vilkitsky and Bering straits."

"NEW ORLEANS -- A federal judge presiding over litigation spawned by the massive Gulf of Mexico oil spill has dismissed all claims against the manufacturer of a chemical dispersant that was used to break up crude gushing from BP's blown-out well."

"The Supreme Court [Monday] weighed whether a U.S. EPA rule issued Friday could resolve a dispute over stormwater runoff from logging roads."

"The Supreme Court may use an L.A. case to decide for the first time who can be held responsible for storm water runoff pollution."

"After more than a decade of deliberations, the San Diego County Water Authority voted Thursday to buy desalinated water from a $984 million project planned in Carlsbad. Officials hailed it as a historic step on the path to water self-sufficiency for the region."

A new study suggests that BP's use of dispersants during the 2010 Gulf oil spill likely allowed oil to penetrate beaches more deeply, making harmful effects last longer.

"The U.S. government's proposal to use the canal to deliver water to Mexico doesn't sit well with farmers and officials in the Imperial Valley."

"Washington Gov. Chris Gregoire (D) ordered state agencies on Tuesday to take steps to address the ocean’s increasing acidity, making it the first state to adopt a policy to take on what scientists describe as a growing environmental concern."