The U.S. Is Sitting on a Goldmine of Critical Minerals – but They’re Being Thrown Away

Critical U.S. minerals are already mined but discarded. Small-scale recovery could meet demand and cut waste. According to a new study published in Science, existing U.S. mines already produce all the critical minerals needed each year for energy, defense, and technology. The problem, explained Elizabeth Holley, associate professor of mining engineering at the Colorado School [...]