South Wales' abandoned coal mines could hold the key to greener heating across the U.K. Scientists from Aberystwyth University have mapped the microbes that thrive in the mines. These tiny organisms ...

Dozens of people get injured or die in the U.S. every year because they don’t follow this simple advice: Stay out of abandoned and active mines and surrounding lands. Abandoned mines are not history ...

From Europe to North America, an energy revolution is breathing new life into empty, long-forgotten coal mine shafts—by repurposing them into places to store renewable energy. Using "gravity batteries ...