"Controversial environmental activist Paul Watson has stepped down as head of the Sea Shepherd Conservation Society after being named in a U.S. court order preventing him from approaching Japanese whaling fleets."

"There are signs that climate-change coverage is poised for a rebound after three years of decline, experts say, but the media continue to pay it scant attention, and a lot would need to happen in 2013 to change that."

"Representative Jack Kingston (R-GA), the incoming chair of the U.S. House of Representatives panel that controls the budget of the National Institutes of Health (NIH), has a long-standing reputation as a conservative budget hawk intent on reducing government spending. He's also known for being skeptical that humans are contributing to climate change and for rejecting Charles Darwin's theory of evolution by natural selection. But although that record might make many scientists anxious, his reputation as an inside operator who understands the importance of funding research makes many science boosters breathe a little easier. "

"FRESNO, Calif. -- Visitors might miss the 1920s-era ice skating rink in the winter or the summer bike and raft rentals, but they'll likely be glad to hear that a plan released Tuesday to protect the river that runs through Yosemite National Park won't reduce the number of daily visitors."

"The drought that ravaged U.S. corn and soybean crops and spurred record prices may persist, threatening a recovery in production this year that’s needed to bolster global inventories, according to forecasters."

"RALEIGH -- Conservation groups filed a lawsuit on Tuesday against the state Environmental Management Commission, Duke Energy and Progress Energy seeking the cleanup or shut-down of 14 ash pits that collect tons of waste from coal-burning power plants across the state."

"Last week, federal lawmakers trumpeted the passage of the Drywall Safety Act of 2012 as a bipartisan victory for thousands of homeowners harmed by contaminated drywall."

"ANCHORAGE -- As response teams continued Tuesday to evaluate Royal Dutch Shell's once-grounded oil drilling rig, the Coast Guard, the Obama administration and U.S. Sen. Mark Begich all announced investigations or reviews taking a close look at Shell":

"The year 2012 was the warmest on record for the contiguous United States, beating the previous record by a full degree in temperature, a government climate agency said on Tuesday."

A French scientist has published a study indicating that plastic additives called phthalates, thought to be endocrine disruptors, are widely found in one species of ants -- presumeably because they have become widespread in the environment.