From Planet Money:
A famous biologist, Paul Ehrlich, predicts that overpopulation will lead to global catastrophe. He writes a bestselling book — The Population Bomb — and goes on the Tonight Show to make his case.An economist, Julian Simon, disagrees. He thinks Ehrlich isn't accounting for how clever people can be, and how shortages can lead to new, more efficient ways of doing things.
So Simon challenges Ehrlich to a very public, very acrimonious, decade-long bet. On today's show: The story of that bet, and what it tells us about the future of humanity.