New environmental rules have been introduced to control pollution at sea, but might they do more harm than good—and how can shipping be made greener in the long term? Also, a look at the future of nursing, as 2020 has been designated the year of the nurse. And how Xi Jinping is playing a long game to improve Chinese football in the decades to come. Tom Standage hosts. 

Music by Chris Zabriskie "Candlepower" (CC by 4.0)

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