The landscape of the city of Datong, in the clear sky, Oct 16 [Photo by Wen Bin/chinadaily.com.cn]

The city of Datong, Shanxi province, is largely advancing its ecological construction, trying to turn the coal-driven city into a green economy. It has been promoting the cultural, tourism, and trade industries, as well as clean energy. Its industrial structure has been comprehensively improved, and last year, the proportion of the service sector in the city's GDP surpassed the secondary industry for the first time.