You may have heard about ethanol as a fuel in the media lately. Using ethanol as a fuel for vehicles has been proposed to reduce dependence on foreign oil imports (for the United States) and others allege it is a cleaner fuel than petroleum. Yet the picture with ethanol is not ideal: for example, what if demand exceeds production capacity, putting pressure not only on fuel prices but on food?
How is ethanol used in the world today? Learn about the history behind ethanol as a fuel and current trends.
What benefits or detriments would increased usage of ethanol fuels bring to the environment?
What are some current and future methods to producing ethanol? How efficient are they?