There is a lot of talk these days about "alternative fuels." But just what are these alternative fuels, and why is everyone so excited about them?
In the simplest terms, an alternative fuel is any fuel other than gasoline or diesel. Since many alternative fuels are also renewable — and can be produced here in the U.S. — they could reduce our dependence on foreign oil.
Alternative fuels such as biodiesel, ethanol and methanol, have been produced and used on a small scale for decades. They are now being rediscovered due to the rising cost of oil and the instability of world politics. Here's where our oil is imported from — it may surprise you to read who the top supplier is.