EPA, Greenhouse Gases and the Copenhagen Climate Summit
The Environmental Protection Agency officially declares greenhouse gases a threat to public health and welfare. How the decision could affect the U.S. economy and the Obama administration's position at the Copenhagen climate summit.
former assistant administrator for air and radiation at the Environmental Protection Agency (2001-05); now heads the environmental strategy section at Bracewell & Giuliani LLP.
energy and environment correspondent, National Journal
president, Pew Center on Global Climate Change and Strategies for the Global Environment
environment editor and columnist, Wall Street Journal
His WSJ column "Power Shift" appears every other Friday.