"Discover how scientists and engineers are testing out new sources of energy and what you can do to reduce your personal energy use"--Provided by publisher.

Rebecca E. Hirsch is an award- winning children's author with a PhD in plant biology. Her picture books include Plants Can't Sit Still and Night Creatures: Animals That Swoop, Crawl, and Creep while You Sleep. She lives with her husband and three children in State College, Pennsylvania. You can visit her online at rebeccahirsch.com.