Rock Doc

Every time I fill my gas tank, I see the notice on the pump that explains part of the fuel I'm buying is ethanol. Ethanol is alcohol, a type of biofuel rather than fossil fuel. While biofuels can be good to promote national energy independence and possibly help with greenhouse gas emissions, the ethanol in our gasoline is made from corn. (The starch in the corn is broken down into sugars that are then fermented into alcohol.) With corn ethanol, we are essentially putting food into our gas tanks, a fact that some people take exception to because it drives up food prices and deprives people of b...