Once the dominant source of energy in the United States, today, 401 coal units supply roughly 16 percent of the nation’s grid ...

Xuzhou, known as a century-old coal city, once had Pan'an Lake as its largest coal mining subsidence area. Since 2011, the local government has implemented comprehensive remediation of the ...

Those who grew up in Enugu or had things to do with it in the past, will always remember their beloved city with nostalgia; a ...