Our Planet is the kind of nature show where every image could be a screen saver: sweeping, dramatic landscapes are full of colorful animals. But among the high-definition scenes of lions on the hunt, there are some images you don't often see in these kinds of shows. Tropical reefs bleach into white bone-scapes; glaciers crumble into Arctic seas. In one particularly noteworthy sequence, confused walruses plummet off a cliff to their deaths — a phenomenon that the show links to climate change and the decline of the walrus' preferred habitat of sea ice. Series producer Alastair Fothergill was responsible for some of the most high-profile nature documentaries of the last decade: Planet Earth , Blue Planet , Frozen Planet . In an interview, he says that it...
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'Our Planet' Nature Documentary Addresses The 800-Pound Gorilla — Human Impact