In China’s coal belt, Datong has been considered the most polluted city in the world. Wenying Lake, east of the city, once a prominent destination for leisure and trekking, became degraded as the city expanding rapidly in recent decades.
In China’s coal belt, Datong has been considered the most polluted city in the world. Wenying Lake, east of the city, once a prominent destination for leisure and trekking, became degraded as the city expanding rapidly in recent decades.