By the time you finish reading this article, more than 400 Chinese people will have left the countryside and put down new roots in a city.
China’s cities, which already house a tenth of the world’s population, are swelling every minute. It is the largest migration in human history, and is a driving force behind China’s demand for everything from steel to sugar to electricity.
Perhaps more surprisingly, cities have become a key front in the country’s fight against pollution and efforts to shift toward more sustainable growth.
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