Sunday, 60 Minutes replayed an episode about a climatologist in Siberia that is working with a DNA researcher to bring them back to trample the snow into the perma-frost and thus save the world from methane and carbon poisons.
Scientists try to re-create the Ice Age to combat a climate problem in Siberia - the project to revive the extinct woolly mammoth using DNA.
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Episode 40
60 Minutes episode (season 51, episode 40)
Available on CBS for free