Since the return of the Taliban, Afghanistan's coal exports have increased — and so has child labor. At a coal mine in Baghlan province, boys earn between $3 and $8 for a day's work.

Ukraine's coal industry was in decline. Now miners find themselves in the middle of a war with Russia — and global demand for coal is rising.

Russian authorities released the names of 51 people presumed dead after a devastating methane explosion in a coal mine in Siberia, believed to be the country's deadliest mining incident since 2010.

A town in northern England wants to open a coking coal mine to create jobs. But while hosting the U.N. climate summit, Prime Minister Boris Johnson is urging countries to slash greenhouse gases.