Drainage from abandoned coal mines can carry massive loads of carbon dioxide, venting to the air decades or even centuries after mining stops.

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 ...

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 ...

A small band of explorers are cracking into the radioactive mines where the Kremlin once used slave labor to dig out its ...

The company has partnered with Apple, Tiffany and Co., and Canadian jewelry company Mejuri, which have agreed to buy metals ...

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 ...

Rick Sr. discovered a 150-year-old abandoned gold mine on a remote Arizona ranch 40 years ago and dreamed of saving the old ore cart. Now, his son, owner of Murphys Diesel, has built Hellboy, a ...