Did you know people can dig underground and use Earth's heat to make energy? This geothermal energy can power your computer and heat or cool your home. How exactly do we get it, though? And what is the impact on our environment? Read this book to find out all about geothermal energy.

Matt Doeden began his career as a sports writer. Since then, he's spent more than a decade writing and editing children's nonfiction. Matt lives in Minnesota with his family.