In this Nov. 21, 2018 photo a miner puts away the equipment after an underground shift at the Wujek coal mine in Katowice, in Poland's southern mining region of Silesia. The mining industry has long been a source of pride and employment for generations of Silesians. For decades, its rich seams of hard, black coal were used to heat homes and provide electricity across Poland. (AP Photo/Czarek Sokolowski)