clean air

  • December 21, 2011  

    The Environmental Protection Agency unveiled new standards Wednesday to curb mercury emissions from coal- and oil-fueled power plants around the country. Gwen Ifill discusses the announcement with the Electric Reliability Coordinating Council’s Scott Segal and the Natural Resources Defense Council’s John Walke. Continue reading

  • November 29, 2006  

    The U.S. Supreme Court heard its first case on global warming Wednesday, with 12 states asking the court to mandate limits on greenhouse emissions from new cars and trucks. Experts discuss the case and analyze its significance. Continue reading