EcoWatch: A new ad campaign from the League of Conservation Voters characterizes the recent behavior of the U.S. Chamber of Commerce and other fossil fuel supporters and donors with three Dsdirty, desperate and dangerous. The $250,000 Desperate campaign blasts the U.S. Chamber of Commerce and its allies attempts to kill the Environmental Protection Agencys emissions proposal in advance of next weeks public hearings in Atlanta, Pittsburgh, Denver and Washington D.C. The ad is in response to the analysis...