Yong Geng is a professor of environmental management at the School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. Joseph Sarkis is a professor of ...

Rare earth elements are a group of 17 metals used in a wide range of things that make modern life possible, including batteries, magnets, LED light bulbs, phone screens, and catalytic converters.

In Frank Herbert’s space opera Dune, a precious natural substance called spice melange grants people the ability to navigate vast expanses of the cosmos to build an intergalactic civilization. In real ...