The US and Mexico are joining forces to enhance conservation in the area around Big Bend, in Texas, and El Carmen in the northern Mexican states of Chihuahua and Coahuila.

"After four years of negotiations, Utah and Nevada officials have created a draft agreement for management of the controversial Snake Valley aquifer straddling both states."

"Water managers and the White House signed a crucial contract Thursday that promises a much-needed infusion of federal dollars for the Everglades."

"The North Atlantic Ocean has spawned more hurricanes and tropical storms over the last decade than it has since a similarly stormy period 1,000 years ago, according to a new study."

"A Sacramento judge sided with the styrene industry and against state environmental officials on Wednesday in ruling that the chemical doesn't have to be listed under Proposition 65 as a cause of cancer."

"Some Senate Republicans want the climate change bill to focus on building new nuclear power plants. They're calling for as many as 100 new plants in 20 years. But the industry has been in decline for so many years now, there's concern there might not be enough nuclear engineers to do the job."

"In a victory for environmental groups, a Richmond judge on Tuesday invalidated a permit for a coal-burning power plant being built in southwestern Virginia."

"U.S. EPA Administrator Lisa Jackson has sided with environmental groups on several challenges contending that permits issued to a Tennessee Valley Authority coal-fired power plant failed to properly account for air pollution."

"A federal judge let stand a Bush administration rule that makes it easier for companies involved in mountaintop coal mining to dump debris near streams."

"Amaranth Advisors, a hedge fund that collapsed in 2006, agreed to pay $7.5 million to settle accusations from regulators that it tried to manipulate natural gas futures."