Energy is all around us. Food and sleep are the fuels our bodies use to create the energy we need to move, talk, and think. But scientists tell us some of the fuels that keep our homes and businesses running, power our transportation, and keep us safe are hurting Earth. Learn why energy companies are working to come up with cleaner ways to supply oil and gas, how fuels in the future will be safer for Earth, and what you can do now to use energy wisely. Book features: Table of Contents; Glossary; For More Information including books and web sites; Index; photos and captions; charts and graphs; source notes.