Public

"The Cold War brought mercury to Oak Ridge, and it never really left. In the 1950s and early 1960s, the Y-12 nuclear weapons plant used enormous quantities of mercury — about 24 million pounds all told — to process lithium for hydrogen bombs.The work was urgent, secret and messy."

"Russia's vast tundra has been ravaged by oil companies unwilling to clean up their acts."

"At a fall retreat, board members of the Natural Resources Defense Council, the environmental advocacy group, listened as a political consultant gave a critique of the green movement."

"Big Corn and Big Sugar are locked in a legal and public relations fight in the US over a plan to change the name of a corn-based sweetener that has gotten a bad name."

"CHALK RIVER, Ontario — At 3:07 p.m. on Friday, Dec. 12, 1952, the National Research Experimental nuclear reactor, then the most powerful research reactor on Earth, raced out of control, rapidly overheated and exploded, destroying the reactor core and spewing radioactive gases and debris into the atmosphere."

"FAIRBANKS, Alaska — A bubble rose through a hole in the surface of a frozen lake. It popped, followed by another, and another, as if a pot were somehow boiling in the icy depths. Every bursting bubble sent up a puff of methane, a powerful greenhouse gas generated beneath the lake from the decay of plant debris. These plants last saw the light of day 30,000 years ago and have been locked in a deep freeze — until now. ..."

"The federal spending bill before Congress is a no-spending bill for the Energy Department when it comes to enforcing new efficiency standards for light bulbs. But the new standards for light bulbs — signed into law in 2007 — would remain in place, meaning the effort to stem the new rules might mean little at the end of the day."

"A new discovery from a chemist at the University of Texas at Austin may allow photovoltaic solar cells to double their efficiency, thus providing loads more electrical power from regular sunlight."

"The Obama administration finished crafting tough new rules Friday curbing mercury and other poisons emitted by coal-fired utilities, according to several people briefed on the decision, culminating more than two decades of work to clean up the nation's dirtiest power plants.

A rider attached to the payroll tax bill would set a 60-day deadline for the Obama administration to make a postponed decision on the Keystone XL pipeline. A deal on the bill had seemed done as the weekend began, but comments by House Speaker John Boehner on a Sunday talk show seemed to signal that GOPers were going back on the deal.