A burnout pushed one woman to build a new, nature-friendly career in one of the rainforest’s most deforested cities.

In a dramatic policy shift, Tucson Electric Power says it will stop using coal to generate electricity by 2032 and will increase renewable energy’s share of its energy load to more than 70% by 2035.

Arizona's Verde Mining District has historically been one of the richest outcroppings of copper ore in the world, with the United Verde and United Verde Extension Mines producing over $4 billion in ...