"HOUSTON -- More than 80 environmental groups on Monday demanded a broad investigation into whether the U.S. Environmental Protection Agency behaved improperly when it abruptly dropped enforcement actions against a gas driller it had accused of contaminating water in Texas."

"TOKYO -- A wildlife conservation group said in a report on Wednesday that Japan has been propping up its whaling industry with nearly $400 million in tax money in recent years, stepping up subsidies even as consumption of whale meat here has slumped."

"GRANTS PASS, Ore. -- A federal report says removing four hydroelectric dams on the Klamath River in Oregon and California and restoring ecosystems will produce a big increase in salmon harvests and boost farm revenues."

"HOBART, Australia -- The month of January, usually the prime whale catching month for the Japanese whaling fleet in the Southern Ocean, has come and gone without the death of a single whale, says Sea Shepherd Conservation Society Australia Director Jeff Hansen."

"The Justice Department on Wednesday asked a federal judge in New Orleans to require BP to produce documents that outline how it low-balled the amount of oil flowing into the Gulf of Mexico from its Macondo well in 2010. The estimates were sent to the Coast Guard and Congress."

"In south Texas, where the Rio Grande divides the United States from Mexico, three of the last remaining sections of border fence -- approved more than five years ago -- remain unbuilt."

"The Obama administration is proposing to allow the Navy to harm more than 30 million marine mammals while conducting exercises in two training ranges over the next five years."

"A trio of environmental groups warned Monday they would sue the operator of three coal-fired power plants in Maryland for allegedly discharging excessive amounts of nutrient pollution into Chesapeake Bay rivers and trying to mask their violations by transferring pollution 'credits' among facilities."

"Levels of PFOS, a chemical manufactured by 3M Co. for a variety of commercial uses until about 10 years ago, have improved significantly in the Mississippi River between Hastings and St. Paul -- except for the area around the company's Cottage Grove plant, where they have worsened."

"Mexico City plans to draw drinking water from a mile-deep aquifer, according to a report in the Los Angeles Times. The Mexican effort challenges a key tenet of U.S. clean water policy: that water far underground can be intentionally polluted because it will never be used."