"The Navy unveiled a major update of its energy policies ashore on Tuesday, calling for improved efficiency, greater conservation and increased use of renewable power to cut energy consumption in half at bases worldwide by the end of the decade."

"STUART, Neb. -- Stepping carefully through a 12-foot-deep canyon gouged into the sandy soil of their family ranch by a long-gone storm, Kurt and Laura Meusch ask a Shakespearean question: What's in a name?"

"Two years ago this month, an oil pipeline burst in Michigan, contaminating 38 miles of the Kalamazoo River. It didn't get much national notice because everyone was focused on the massive BP oil spill in the Gulf of Mexico."

"A new water-purification system using solar power to purify contaminated groundwater holds promise for solving water problems not only on the Navajo Nation, where it is being tested, but for many other indigenous communities as well."

"The debate over making post-Fukushima Daichi improvements to American reactors is getting down into the details, and one focus is pressure relief vents."

"More than 1 million homes and businesses in a swath from Indiana to Virginia remained without power on Wednesday, five days after deadly storms tore through the region."

"A U.S. Navy oiler slipped away from a fuel depot on the Puget Sound in Washington state one recent day, headed toward the central Pacific and into the storm over the Pentagon's controversial green fuels initiative."