On Thin Ice on AllMovie

Moved by an impending tragedy for an entire species, producer and host Greg Grainger leads an expedition into the arctic to examine the lives of the polar bears who, thanks to global warming, are predicted to become extinct within 50 years. Desperate and starving with their natural habitat becoming depleted of resources, bears are found in poor health, scavenging for food in garbage and fighting with dogs over scraps, when just a short while ago the creatures were elusive hunters rarely seen by humans.