Rare-earth mining. “Shuang-Liang Liu et al. have compiled a dataset of 146 mining projects targeting rare-earth elements, which serve as “critical raw materials in many low-carbon technologies.” The dataset lists each project’s name, company, location, status, deposit type, estimated tonnage of deposits, element composition, and other details sourced from “company annual reports and public presentations, government reports, and papers in various scientific journals.”