Twice in our planet's history, catastrophic extinctions have nearly wiped out life on earth. According to this startling documentary, a third mass extinction is now unfolding. But this time, the cause is not a volcano or an asteroid crash, it is human devastation of the environment. Join Dr. Peter Ward on fascinating expeditions to South Africa, Hawaii and Alberta. As the paleontologist sifts through clues of what went wrong millions of years ago, he discovers trends similar to those occurring today. Ecosystems are being destroyed and species are disappearing at an astounding rate. The threat to earth's diversity of life …
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