"The prospects for building new nuclear reactors may be sharply limited, but the owners of seven old ones, in Pennsylvania, Virginia and South Carolina, are preparing to ask for permission to run them until they are 80 years old."

"Three widely cited state studies of air emissions at Marcellus Shale gas development sites in Pennsylvania omit measurements of key air toxics and calculate the health risks of just two of more than two dozen pollutants."

"Rick Piltz, a gutsy whistleblower who revealed a pattern of politically torqued rewriting of climate science reports during the first term of President George W. Bush, died early Saturday morning after a fight with cancer."

"In August, Tom Steyer and seven campaign advisers sat in a small conference room in Coral Gables, Fla., trying to figure out how to save the world. Steyer, who is 57, has a fortune of roughly $1.5 billion, and his advisers were among the most talented political operatives in the United States."

"While cyberattackers and defenders duel for advantage in ever-more-complex digital battlegrounds, a set of basic vulnerabilities affecting power grids, factories and pipelines has gone largely unaddressed."

"Texas environmentalists faced off in court this year against a coal-fired power plant with more than 6,500 alleged exceedances of the federal Clean Air Act limits on opacity, an indicator of fine airborne soot."

"A long-awaited report issued Thursday by the Nuclear Regulatory Commission found the Yucca Mountain site — once considered by the government but halted by the Obama administration — could be safe to store nuclear waste."

"SC Johnson will be the first large company to disclose all fragrance ingredients in products. Could this be the end of trade-secret protection for the fragrance industry? "

"Former employees at Hanford, the country's most contaminated nuclear waste site, discuss its disturbing safety culture"

"Six organizations are teaming up to visit college campuses and encourage young people to vote in the name of environmental protection."