A planned copper mine could alter Tucson's natural skyline, but in the 'Copper State,' mining interests still hold sway.

This story was first published by Grist . At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a ...

At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a reactor the size of a small watermelon. Here, ...

If the ore is too low-grade (meaning the concentration of copper is too low ... In 2019, Jetti began deploying its technology ...

Roughly 70% of copper produced in the U.S. comes from Arizona. Electric vehicles, solar panels and power cables can’t be produced without it, and for the first time last year, the U.S ...

Freeport's copper production is diversified, with 32% in North America, 29% in South America, and 40% in Indonesia. See why I ...

The income required to be middle class in the United States jumped by 42% between 2012 and 2022. The change in Arizona is ...

This story was first published by Grist. At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a reactor the size of a small watermelon. Here, scientists with the mining ...

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Everything uses a battery, but what to do with dead batteries in Arizona isn't always clear. Here's how to properly dispose ...

Its flagship asset, the Gunnison Copper Project, has a measured and indicated mineral resource containing over 831 million tons with a total copper grade of 0.31% (measured mineral resource of 191 ...