<p>Energy Information Administration reported that the proposed Senate legislation to limit greenhouse gases from power plants, refineries, and factories would cut United States gross domestic product by 0.2 percent between 2013 and 2035. The legislation aims to reduce greenhouse gases by 17 percent from the 2005 level by 2020, which would cost the average household $206 a year. Under cap-and-trade, the government will issue a declining number of carbon dioxide allowances which companies can buy and sell. Allowances carrying the right to release one metric ton of carbon dioxide into the atmosphere would cost $32 each.</p>