(Bloomberg) -- Carved into a mountain range in Arizona’s Sonoran Desert, where temperatures often reach 118F (48C), a vast mining complex more than a century old is on the front lines of a race to ...

Skyrocketing demand for copper promises to push prices to new heights. As the global economy transitions away from fossil fuels, it is going to need twice as much copper in the coming years than ...

Copper has endured as a linchpin of Arizona's economy since the territorial days. Arizona produces three-quarters of America's copper, valued at $6 billion a year, and the industry employs thousands ...

Still Bright hopes its chemical process could help replace polluting copper smelters. Demand for copper is surging, as is pollution from its dirty production processes. The founders of one startup, ...