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    Former U.N. climate chief on Paris deal breakthrough

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Former U.N. climate chief on Paris deal breakthrough

Former U.N. climate chief Christiana Figueres speaks to Christiane Amanpour as the Paris climate deal becomes closer than ever to becoming binding.

Former U.N. climate chief on Paris deal breakthrough

Former U.N. climate chief Christiana Figueres speaks to Christiane Amanpour as the Paris climate deal becomes closer than ever to becoming binding.