Episode description

Humans love a good apocalypse. Give us a blockbuster about a virus that obliterates the population, an asteroid that wipes out the entire planet, or anything with aliens and we lap it up. But have you ever thought about what will actually kill us at the finish line? Sure, we’d like to think the zombie apocalypse will be the winner, but if we’re talking about plausible ways to exterminate humanity, what’s a good way to go?

The end of the world as we know it isn’t all fiction. Life on Earth has come pretty close to getting wiped out a few times actually. Genetic analysis shows humanity plummeted to perilously low numbers—about 1,200 breeding humans (yes, we are all related)—when intense volcanic activity in Siberia caused global warming and wiped out 96% of plants and animals. 

But life persisted. We might be inbred, but it seems total annihilation is harder to pull off than you think. The asteroid that wiped out the dinosaurs 65 million years ago didn’t completely destroy the earth, and humans managed to scrape through the black plague. So what could be our final end?

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