PROS

Ethanol burns cleaner than fossil fuels. This means that vehicles that use Ethanol or a gas-ethanol mixture spit out a lot less carbon dioxide into the air. Because carbon dioxide is one of the main greenhouse gases that are responsible for global warming, this also means that using more Ethanol results in less greenhouse gases, which slows down global warming.

The price of a gallon of pure ethanol is comparable to the price of a gallon of gasoline, but you get more fuel mileage out of a gallon of Ethanol than you do out of one gallon of gas. In the case of diesel, Ethanol is currently cheaper and most current diesel engines run on it well.

Corn farmers can make more money. Their product is very useful to the world, but it has just become even more useful, so the prices will rise on corn.

The corn has to be processed into Ethanol, so more factories will have to be built.

Ethanol is made from corn, soybeans, and a few other vegetables, but mostly corn. These sources are renewable,we don't have to use our underground reserves anymore.

The plants that Ethanol is made from also take carbon dioxide from the air.

All of this information comes from this website: http://www.associatedcontent.com/article/314393/the_pros_and_cons_of_ethanol.html