Joe Biden pledged that the U.S. will double the money it's making available to help developing countries cope with climate change.
Sky's Jonathan Samuels discusses; 'where's this money going?' And 'what's being done with it?'
He's joined by the travel writer Juliet Kinsman, and George Monbiot - environmentalist and Guardian columnist
Watch the full debate on whether the $100bn climate pledge is the solution for developing nations
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