When Deng Xiaoping became China’s president in 1979, he loosened government controls and freed-up market forces. Four decades later, China has become the world’s second-largest economy while realizing high growth rates.

To maintain such an expansion, China has to rebuild its cities and provide not just sustainable energies but also top-tier transportation and zero-carbon buildings. It’s even more critical as the country is moving rural populations into cities where there are jobs, medical facilities and modern conveniences. There are 665 million urban residents now compared to 190 million three decades ago, says the World Bank. And 350 million more will move in over the next 20 years — supported by a growing economy and new housing.
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