A few years from now the nation will begin making big changes in the ways it uses energy, and generate it from cleaner sources, if the Obama administration's proposed new limits on carbon dioxide emissions – announced at EPA headquarters in Washington Monday – are fully implemented as planned.
That means there will be winners and losers among our current mix of fossil fuel-based energy sources, of which coal is the biggest single source, providing nearly 40 percent of the power used by homes and businesses nationwide.
The proposed limits will likely help the biggest U.S. natural gas producer, Exxon Mobil, by increasing demand for its fuel, which emits half the carbon dioxide as coal. The biggest nuclear power generator, Exelon, and biggest wind farm operator, Next Era Energy, may fetch higher prices for their carbon-free power.
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