Chengdu, China has surged in population in the last few decades, from 8.2 million in 1980 to over 21 million today. It is one of several emerging megacities to boom under China’s “Go West” policy, which boosted economic development and migration to its previously underdeveloped interior. Chengdu’s metropolitan area has expanded outward with a series of concentric ring roads, spanning 1,760 square miles (4,559 square km). | Daily Overview

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. Otherwise, recycling credits can be redeemed for other purposes. #TheHub | CGTN