The Department of Homeland Security said it will waive dozens of environmental, health and other laws to clear the way for construction on about 58 miles of border barriers.
According to the Climate Central report, Tucson's average increase of 4.48 degrees was third-biggest in the country and Phoenix's 4.35-degree rise was good for fourth place.
Natural Restorations, an Arizona nonprofit that removes trash and graffiti from outdoor recreation and wilderness areas, works with veterans to help them heal as well.
A multi-state drought plan to preserve water levels in the Colorado River Basin had critical input from Arizona’s tribes, setting a new precedent for water rights in Indian Country.
Flagstaff and federal officials are using a helicopter to thin the forest on Mount Elden to reduce the risk of wildfires and protect the city’s watershed.
The U.S. Fish and Wildlife Service is considering protecting monarch butterflies, and citizen scientists are providing the data needed by researchers to make that decision.
The Mexican gray wolves were almost driven to extinction in the 1970s, but currently number about 100 animals in Arizona, New Mexico and northern Mexico.