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 ...

When Emmanuel Siyabonga was a boy, he wasn't fussy about the type of job he wanted when he grew up. Other boys dreamed of being footballers, doctors, soldiers. All Siyabonga wanted, he says, was a job ...

Reasons to be Cheerful explains how "gravity batteries" are giving former mines a second life—while offering an economic and environmental boost to communities once reliant on coal. From Europe to ...