We think of the Arctic as glistening with white sea ice. But marine biologists know that if you look closer, especially at its underside, Arctic sea ice should be green!
Polar sea ice is not only a place for polar bears and penguins to rest, it is the base of their food supply, thanks to the iridescent green algae within. Filmed on several Arctic and Antarctic expeditions, this documentary blends spectacular beauty, quirky scientists and cutting-edge research to explore an unknown aspect of climate change.