A new report highlights six startups that are innovating to address the significant environmental costs and supply chain vulnerabilities associated with rare earth metals. These metals are crucial for the clean energy transition, used in products like wind turbines, solar cells, and electric vehicles. However, their mining process is often environmentally damaging, producing acidic and radioactive waste and consuming vast amounts of water. The global market value of rare earth metals is expected to grow by 44% by 2030, underscoring the urgency of finding sustainable solutions. The startups featured, including Minnesota-based Niron Magnetics and Ontario-based Cyclic Materials, are developing new technologies to reduce this environmental impact. The efforts also aim to lessen the world's reliance on China, which currently dominates the rare earth supply chain. Other companies mentioned include Interlune from Seattle, RarEarth from Milan, REEgen from Ithaca, and Phoenix Tailings from Massachusetts, each offering a unique solution from lunar mining to using microbes to extract minerals.