Thanks to biomass power, we now have cars that can run just on discarded vegetable oil. Anytime waste, wood, and plants are converted into energy--that is biomass power. Like fossil fuel, biomass power comes from biological material. Unlike fossil fuel, biomass is a renewable energy source. This stimulating book explains how everyday material, much of which can be found in our trashcans, is turned into usable and sustainable energy. Photographs and informational diagrams make the complicated conversion of waste to energy easily comprehensible for young readers.