Proponents of Scottish independence are banking on that country's North Sea oil to fuel its economy -- but after four decades of pumping the reserves may not last forever.

"New US sanctions on Russia are the strongest yet against Russia. The point of new Russia sanctions on five major energy firms is to 'shut down' Russia's deepwater, shale, and Arctic exploration, according to one senior US official."

Removal of two dams on the Elwha River on Washington's Olympic Peninsula is allowing years of sediment and debris to make its way downstream and salmon to make their way upstream. Here's a stunning firsthand look at the river then and now.

Oysters have been the foundation of a booming business for the Hog Island Oyster Company in Northern California. But ocean acidification as a result of increasing atmospheric carbon dioxide is threatening that.

"Carpetbagger Scott Brown is discovering that his newfound refusal to accept climate science may hurt him in November’s New Hampshire Senate election. According to a new poll commissioned by the League of Conservation Voters, 48 percent of New Hampshire voters say they would be less likely to support a candidate who does not acknowledge the reality of climate change, versus only 21 percent who say they would be more likely."

"BILLINGS, Mont. -- Canada lynx gained federal protections in New Mexico on Thursday, but U.S. wildlife officials again declined to designate critical habitat for the elusive animal in the Southern Rockies, parts of New England and other areas considered non-essential to their survival."

"The Senate Energy and Natural Resources Committee Thursday easily approved Elizabeth Sherwood-Randall’s nomination to be second in command at the Energy Department."

After an outbreak of drug-resistant salmonella in 2013 was traced to Foster Farms chickens, the Natural Resources Defense Council used the Freedom of Information Act to get records of the firm's food-safety violations. As a result of the pressure, Foster Farms says it has cleaned up its act and is using less antibiotics.