JUDY WOODRUFF:Finally tonight, what's behind the long struggle to reach a new international agreement on reducing greenhouse gases? Margaret Warner has our update. MARGARET WARNER:It's been nearly 15 years since leaders from 37 industrialized countri...
GWEN IFILL:The Environmental Protection Agency unveiled new rules today to curb mercury emissions from the nation's power plants. The standards apply to roughly 600 coal- or oil-fueled power facilities. They will have to either reduce their emissions...
JUDY WOODRUFF:And that was, after the vote on the fiscal cliff, there was another, a different spending spat that divided the Republican Party. House Republican leaders refused to take up an aid package for victims of Hurricane Sandy, which the presi...
JEFFREY BROWN:And now a resignation brings an assessment of President Obama's environmental policies in his first term and a look ahead to his second. LISA JACKSON,Environmental Protection Agency: I'm very proud to be a part of his administration. JE...
JEFFREY BROWN:And, for more, I'm joined by two congressmen who were briefed by Ambassador Pickering and Admiral Mullen today. Republican Congressman Ed Royce of California, he's soon to take over as chair of the House Committee on Foreign Affairs. An...
JEFFREY BROWN:And we turn to a major development in a story that grabbed the nation's attention for months in 2010, as oil giant BP reached a settlement today in one part of its ongoing dispute with the federal government over the GulfCoast spill. It...
HARI SREENIVASAN:Tourists may come here to see the imaginary werewolves, but what they find is the real story of a people who have endured. On the beaches of La Push, Wash., Ann Penn Charlesor Ms. Ann, as she's knownis passing on the tradition of fis...
MARGARET WARNER:Finally tonight: Just how old is the Grand Canyon? The conventional wisdom holds that this natural wonder of the world was shaped by the Colorado River about five or six million years ago. But there's been a long-running debate over w...
JUDY WOODRUFF:This was another difficult day in the aftermath of Hurricane Sandy. The U.S. death toll rose to at least 102, and for millions of people, basic needs became increasingly urgent. Ray Suarez has the story. RAY SUAREZ:Four days after Sandy...
JEFFREY BROWN:And we turn to the ups and downs of an energy boom, wrapping up our series that's looked at how new production is fueling rapid changes across the country. In our series this week, we have seen how homegrown energy output is forging ahe...