Yulin, a city in Shaanxi whose prosperity is driven by coal, is not only facing the economic decline of the coal industry, but also the consistent existing conflict between the development of coal industry and the environment. 

榆林，一座位于陕西省的城市，该市经济增长极大依赖于煤矿业。目前，榆林市一方面面临着煤矿产业的整体效益下滑，另一方面也需要面对长期以来存在的煤矿行业发展和环境破坏之间的矛盾问题。