Burning coal to generate electricity is one of the biggest sources of carbon emissions. But climate change aside, does it even make commercial sense anymore?Laurence Knight speaks to clean energy investor Ramez Naam, who relays the story of how he managed to convince one major Asian bank chief executive to stop lending to new coal power projects on the grounds that he was unlikely to get his money back. Another bank to have renounced lending to the coal industry is Standard Chartered. Their head of environmental and social risk, Amit Puri, explains why he thinks others will soon join the bandwagon. Meanwhile Laura Cozzi of the International Energy Agency warns that whatever the bankers may think, the fact is that most of the world's coal plants are in China, where it is the government that decides what gets built.Plus, what to do with a derelict coal-fired power station? Laurence visits London's iconic Battersea Power Station (pictured) and speaks to Simon Murphy the man in charge of its redevelopment.(Picture: Battersea Power Station; Credit: Johnny Greig/Getty Images)

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