It's all fine and good to denounce fossil fuels and call for the switch to renewable energy. But who's going to pay for it? Two years since the Paris Agreement, world leaders are back in the French capital for the One Planet Summit to finance that switch to renewables. So is the best approach carrot or stick? And can it all work without the United States, the world's second biggest carbon producer?
Produced by Charles WENTE, François WIBAUX and Van MEGUERDITCHIAN.
President, 'Sierra Club' environmental organization
Head of United Nations Environment
Chief Sustainability Officer, Storebrand Asset
Head of Climate Finance and Policy, IFC