Earth is sick. Fossil fuels are filling the air, food is being wasted, and resources are growing scarce. But these informative and age-appropriate guides to taking action inspire readers to begin caring for their planet and learn how to become young environmental activists. The text is excellent for explaining science, geography, and environmental studies concepts, and each volume includes age-appropriate activities to inspire kids to find their own ways to take action and help the planet--from riding a bike to eating leftovers.