Robots Might Help Prevent Toxic Mine Spills
January 24, 2019 at 08:00 AM EST
Scientists are developing robots that might someday be able to creep through the pitch-black mines to help prevent spills. A 2015 spill from Colorado’s Gold King Mine unleashed 3 million gallons of water that fouled rivers in three states with toxins: For more investment strategies, visit ETF...