As we continue to strive towards an eco-friendlier society, robots have played an important role in reducing the release of toxins into our atmosphere and waters. Between the creation of robots that are self-sustainable and thus collect their energy from recycled materials to robots that are designed for upkeeping environmental conservation, eco-robots have contributed to the efforts of human beings striving to preserve earth. In this volume, readers learn about the different kinds of eco-robots working today, as illustrations and photographs correlate to age-appropriate text thats both interesting and informative.