Thousands of abandoned coal mines in the US could become giant ‘water batteries’ storing clean energy, scientists say | World News
Across the United States, thousands of abandoned coal mines sit quietly beneath the ground. Old tunnels, empty shafts and remnants of an industrial era that once powered cities and factories. For decades, these sites were mostly seen as environmentally problematic, expensive to maintain, and difficult to repurpose.Now, researchers believe those same mines might hold the…
