While most people enjoy PCs that are powered by SSDs, mechanical hard drives are still king in the datacenter. When these drives reach the end of their useful lives, they are usually shredded, and the key materials they’re made of – including several rare earth elements (REE) – end up as e-waste.
At the same time, countries are mining these same materials and emitting a lot of greenhouse gases in the process. And China, a major source of REE, recently announced export restrictions on seven of them, potentially limiting the U.S. tech industry’s access to materials such as dysprosium, which is necessary for magnetic storage, motors, and generators.
