National (U.S.)

"ANCHORAGE, Alaska --  The eastern population of the Steller sea lion will be taken off the threatened species list, a federal agency announced Wednesday."

"Exposure to the pesticide DDT could be playing a role in high rates of obesity three generations later, a new study says."

"The Food and Drug Administration has a mystery on its hands."

"US carbon emissions fell in 2012 – again – after peaking in 2007. The Great Recession and a boom in cleaner natural gas are widely credited as driving the reduction, but broader, longer-term shifts are also changing the way Americans use energy."

"The US economy is expanding. Population is growing. But carbon emissions continue to decline.

"The U.S. House voted to authorize commercial navigation, flood control and environmental restoration projects, work that could cost taxpayers as much as $8.2 billion over the next decade."

"As Hurricane Sandy barreled ashore a year ago, the storm forced the shutdown of several Northeast coastal nuclear power reactors, including the Oyster Creek plant on the Jersey Shore, which took the brunt of Sandy's huge storm surge. Another reactor at Indian Point Energy Center north of New York City shutdown because of power grid disruptions, and a third reactor in southern New Jersey shutdown when Sandy knocked out four of its circulating water pumps."

"WASHINGTON -- The Transportation Department office charged with overseeing the 2.6 million miles of pipelines in the United States is spending more time at oil and gas industry conferences than it is addressing spills and other incidents, a watchdog group contends in a new report."

"The U.S. government Tuesday announced new rules for snowmobiles in Yellowstone that should make the country's oldest national park cleaner and quieter."

"Carbon dioxide emissions from energy production in the United States fell to 5.29 billion metric tons in 2012 -- its lowest level since 1994 -- despite a growing economy and rising population, according to government data released on Monday."