The Colorado River basin, on the whole, is drying. That’s frightful for the 40 million people and 5 million acres that the ...

As the Arizona Trail winds past the proposed Oak Flat copper mine, the search for climate solutions takes on new meaning.

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Solar for School remains one of the few policy bright spots for clean energy advocates following the state’s exit from a ...

Environmental groups say the plan would permanently destroy an ecosystem and thousands of old-growth trees, but proponents ...