The U.S. is heavily reliant on imports for many critical minerals. How import-dependent is the U.S. for each one, and on which country?
Despite being the world's biggest carbon emitter, China is also a key producer of most of the critical minerals for the green revolution.
Rare earth elements are the critical ingredients for a greener economy, making their reserves increasingly valuable to global supply chains.
One of the last frontiers, moon mining could potentially provide a human colony with important resources such as water, helium-3, rare earth elements, and other substances.