"A nonfiction picture book tracing the repercussions of what would happen if polar bears disappeared from our planet. The freezing ecosystem in the far north of the globe is home to many different kinds of animals. They can be strong like a walrus, tough like a lemming, and sometimes hard to see like the polar bear. Their habitat is melting at an alarming rate. As the Arctic ice melts, polar bears are threatened with extinction, which could affect their environment in negative ways. Lily Williams explores how such a loss would affect other environments and animals across the Arctic and the negative impact across the planet."-- Provided by publisher.