An expert explains why it gets hazy and which air conditions Phoenix residents need to worry about.

John Leonardo, who was sworn in last month as the U.S. Attorney for Arizona, says he won’t take part in any criminal investigation of the Maricopa County Sheriff’s Office.

After a record-setting heat wave, temperatures in the Phoenix area will start to taper off. But we still wanted to see how people were handling the high temperatures. 

Record high temperatures are helping to set records for power consumption here in the Valley. The two major electrical utilities say they have enough power to meet demand but are looking for ways to keeps costs down.

A new study predicts warmer temperatures in Arizona’s growing urban corridor by 2050.

Former Representative Gabby Giffords has moved home to Tucson.

Lightning from monsoon storms is blamed for several fires in the Tonto National Forest.

Nearly a dozen states are hoping the U.S. Supreme Court lets Arizona deny benefits to the domestic partners of state employees.

Navajo Nation officials say plans to shut down three units at the Four Corners power plant could strain the tribal budget.