Using a combination of water testing and machine learning, a U.S. Geological Survey-led study estimated between 5 and 19 million tons of lithium reserves are located beneath southwestern Arkansas, in the USA. If commercially recoverable, the amount of lithium present would meet projected 2030 world demand for lithium in car batteries nine times over.
The study’s novel methodology, carried out collaboratively by the USGS and the Arkansas Department of Energy and Environment’s Office...