Parr adds to his successful series of easy-to-understand, vibrantly illustrated stories with this ecologically themed offering for younger children. He uses a simple, repetitive structure written in first person: “I [do this worthwhile activity] / and [this one] because… // I love [this aspect of nature] / and I want [this to happen].” This structural format works well to bring complex issues such as global warming into a simple context that kids can connect with. The text reads smoothly and poetically, but children may need some additional explanation from an adult to understand the logic behind the actions and resulting benefits. The cheerful illustrations include children of all colors (real and make-believe) and recognizable animals with wildly imaginary color schemes. A concluding note from the author offers encouraging words about taking care of the environment, and the reverse of the book jacket includes a list of ten ways to save the Earth. His approach to this complex topic is simple but not simplistic, and this introduction to the subject is both useful and entertaining. (Picture book. 5-8)