We Need Copper, and These New Methods Could Make Refining It a Lot Cleaner

This story was originally published by Grist and is reproduced here as part of the Climate Desk collaboration. At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a reactor the size of a small watermelon. Here, scientists with the mining technology startup Still Bright are using a rare metal, vanadium, to extract a common one, copper, from ores […]