In Arizona, the Great Old Broads for Wilderness offer citizen scientist hikes and campouts, where they have fun while working on behalf of wildlife.

None were particularly new or original. Long before white settlers arrived — and still to this day — Indigenous people kept livestock, planted crops, extracted minerals and expressed reverence for the weather.

Advanced Water Purification rules will help cities all over Arizona create a new, safe and reliable source of drinking water.

They showed up on the official seal before statehood, but not even Arizona's state historian can pinpoint the beginnings of the Five C's.

climate might also be the “C” that has changed most in the 113 years since Arizona became a state — and the one that has brought the most change. The America of the late 1800s was a country ...