Nuclear power, once the great hope for a clean way to meet the world’s energy needs, fell out of favor decades ago.

Brad Plumer, who covers technology and policy efforts to address global warming for The New York Times, explains how one company with a radical idea is now working to bring it back.

Guest: Brad Plumer, who covers technology and policy efforts to address global warming for The New York Times.

Background reading: 

• Work is starting in Wyoming coal country on a new type of reactor. Its main backer, Bill Gates, says he’s in it for the emissions-free electricity.

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