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Scientists are experimenting with different ways to reduce the amount of carbon being emitted into the Earth’s atmosphere. Nilay Shah, of Imperial College London, explains how carbon capture and storage works. And, Wang Jian, a tech chief of Alibaba, on how data can be harnessed to make cities more efficient. Plus, three low-tech innovations that could make a big difference to sustainable living. Kenneth Cukier hosts Additional music by Chris Zabriskie "Divider" (CC by 4.0) ____________________ Please subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/radiooffer ____________________  

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