Germany's Last Underground Coal Mine Closes

Bottrop, GERMANY - OCTOBER 21: Miners walk after the closing ceremony at Prosper-Haniel coal mine on December 21, 2018 in Bottrop, Germany. Prosper-Haniel was Germany's last underground coal mine. The mine began operation in the mid-nineteenth century and was part of a network of coal mines in the Ruhr region that fueled Germany's industrial revolution. Owned by German mining company RAG, the Prosper-Haniel mine employs 4,100 people. (Photo by Thomas Lohnes/Getty Images)