The EPA¿s promulgation of an ¿endangerment finding¿ for greenhouse gas (GHG) emissions in Dec. 2009, and its subsequent promulgation of GHG emission standards for new motor vehicles on April 1, 2010, have raised concerns that the agency will now proceed to control GHG emissions from stationary sources, incl. power plants,manufacturing facilities, and others. Stationary sources account for 69% of U.S. emissions of greenhouse gases. Some have suggested that EPA should delay taking action on these sources or should be prevented from doing so. This report discusses elements of this controversy, providing background on stationary sources of greenhouse gas pollution and identifying options Congress has at its disposal. Illus.

A renowned Supreme Court advocate tells the inside story of Massachusetts v. EPA, the landmark case that made it possible for the EPA to regulate greenhouse gasses--from the Bush administration's fierce opposition, to the internecine conflicts among the petitioners, to the razor-thin 5-4 victory.