Associated Press: A key House committee has begun consideration of a Democratic bill to address global warming. Rep. Henry Waxman of California, chairman of the Energy and Commerce Committee, said the nation is at a crossroad and can either continue reliance on fossil fuels, or shift to cleaner energy sources and reduce the risks of climate change. A draft bill, hammered out in closed-door negotiations among Democrats and brought before the full panel Monday, would limit carbon dioxide and other …