Dr. Lezak is a researcher at the University of Cambridge and the University of Oxford who studies the politics of climate change.
Seventy years ago, the United States was the world’s leading producer of fluorite, a brilliantly multicolored mineral essential to industries such as steel. But the last American fluorite mine closed nearly 30 years ago, unable to compete with cheaper operations in places like Mongolia.
Although America has abundant deposits of many of the critical minerals that go into our vehicles, electronics and buildings, these materials are mostly mined abroad in poorer nations where labor is cheap (or worse, workers are enslaved) and environmental laws are more permissive, rarely enforced or easily sidestepped with bribes.