How does the use of fuel blended with ethanol benefit the environment?
Gasoline blended with 10% ethanol will reduce carbon monoxide (CO) emissions by up to 30%. Carbon monoxide is a toxic gas that contributes to air pollution. It is of particular concern when vehicles are operating at lower temperatures. Oxygenated gasoline, such as ethanol blends, lower the levels of CO emitted, by promoting a more complete combustion of the fuel. Gasoline blended with 10% ethanol will reduce carbon dioxide (CO2) entering the atmosphere between 4 and 7%. Carbon dioxide is a normal product of burning fuels that contribute to global warming. More CO2 is absorbed by crop growth than is released by the production and use of ethanol.
