Combined photo taken on Aug. 11, 2015 shows the demolition of seven coal-fired units with a total capacity of 680,000 kilowatts in Chiping County, east China's Shandong Province. The local government has issued a project of cleaning up illegal constructions since last October. Some 7,019 construction projects which are of environmental violations have been cleared so far. (Xinhua/Xu Suhui)
