light pollution

"The nonfiction book introduces middle grade readers to the effects of light pollution. Illustrated with photos throughout, it examines why darkness is important for plants, animals and people, and the practical things we can do to protect the night sky for all ecosystems on the planet"--Provided by publisher.

Animals embark on a quest to find true darkness when too many artificial lights at night confuse migrating birds, silence singing frogs, and affect the survival of nocturnal animals.