With a population of nearly 22 million, how has southwest China's Chengdu City carved out a unique low-carbon path? Wang Zhihua, deputy mayor of Chengdu, tells CGTN's Wang Guan the story behind the city's "near-zero carbon" communities. And Wang Guan sees first-hand how organic waste can be turned into low-carbon organic fertilizer, a boon for local urban gardeners.
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