The Prime Minister is at the COP climate change meeting, aiming to position the UK as a leading green champion with a new carbon emissions target. But has Britain been putting its green money where its mouth is? Bloomberg's Joumanna Bercetche joins us from the summit, being held in Baku, the capital of oil dependent nation of Azerbaijan. We discuss if the world's politicians can translate green promises into action. Hosted by Caroline Hepker and Yuan Potts.

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