Polar ice caps are an important part of the environment for both humans and animals, but they're melting at an alarming rate due to an increase in greenhouse gases in the atmosphere. Readers learn about ice caps and their crucial presence on Earth, as well as the harmful effects of losing them, such as an increase in flooding, a loss of animal habitats, and an increase in pollution. Full-color photographs and achievable text guide readers in understanding this pivotal issue. Readers also learn important ways they can play a part in preventing the rise of sea levels.