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Climate Change: Will US Become 'Irrelevant'?

Former head of US environmental agency reacts to Paris accord withdrawal. Also: Who was Robin Hood?

(Photo: American Electric Power Mountaineer coal plant in Letart, West Virginia, USA. Credit: Ty Wright/Bloomberg via Getty Images)

50 minutes

Last on

Fri 2 Jun 201709:06GMT

BBC World Service except News Internet

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