"Today, more than half of the worlds population lives in cities. When more people move to cities, they tend to spread even farther. Habitats are often destroyed in the process. Readers learn why cities are important for humans, as well as what they can mean for the natural world. Is there a way to create cities that dont harm the planet? Readers are encouraged to think critically and discover exciting facts through this valuable volume. As they learn about urban sprawl, readers are sure to wonder: how far is too far?"--.