Alternative Fuel

Alternative fuel is often a moniker attached to renewable energy sources, but technically it refers to any fuel that is not one of the conventional sources for energy employed since the industrial revolution (fossil fuels — petroleum, coal, propane, and natural gas; nuclear materials — uranium).

Clean alternative fuel sources that are renewable or plentiful will be an important source of energy for the decades to come, but we need to all keep in mind that all resources are limited; and without improving energy efficiency nothing can keep up with growing demand.

Alternative Fuel on Wikipedia

Originally posted 2010-01-17 02:00:05.