The world is dependent on oil as its main source of energy. Although oil is plentiful now, the supply will eventually run out. Even worse, burning oil is very damaging to the environment.
About the Author
Anne Rockwell is a pioneer in the field of nonfiction for very young children. She has more than a hundred books to her credit, including Why Are the Ice Caps Melting? and Clouds in the Let’s-Read-and-Find-Out Science series. She lives in Greenwich, Connecticut.
Paul Meisel has illustrated many books for children, including Why Are the Ice Caps Melting?, Energy Makes Things Happen, and What Happens to Our Trash? in the Let's-Read-and-Find-Out Science series. He lives in Newtown, Connecticut.