Global Warming and Biofuels Emissions

The focus of numerous federal and state regulations being proposed and approved today is the reduction of automobile emissions -- particularly carbon dioxide (CO{sub 2}), which is the greenhouse gas considered responsible for global warming. Studies conducted by the USDOE through the National Renewable Energy Laboratory (NREL) indicate that the production and use of biofuels such as biodiesel,ethanol, and methanol could nearly eliminate the contribution of net CO{sub 2} from automobiles. This fact sheet provides and overview of global warming, followed by a summary of NREL`s study results.