Bullard, Lisa. creator Thomas, Wes illustrator Minneapolis, MN Millbrook Press 2012 eng 24 p. col. ill. Earth has a pollution problem. How can you help? Join Tyler to learn what makes Earth's land, air, and water dirty. Find out cool ways to clean up our world. Do your part to be a planet protector! Discover how to reduce, reuse, recycle, and more with Tyler and Trina in the Planet Protectors series, part of the Cloverleaf Books(TM) collection. These nonfiction picture books feature kid-friendly text and illustrations to make learning fun! Lisa Bullard ; Illustrated by Wes Thomas Includes glossary 363 9780761385158 00002f/00002f6a.jpg 00002f/00002f6a.jpg BR-BrIDEA 118254