Specials • E52 Aug 30, 2006 45m
Elizabeth Vargas explores seven scenarios for cataclysms that could destroy civilization on Earth, assesses the likelihood that any of them could occur and explores ways humans might be able to stop them. The seven include: a gamma-ray burst caused by the “death” of a star, artificial intelligence taking over, the eruption of a supervolcano, an asteroid strike, nuclear war, a pandemic or bioterrorism, and climate change....
