XNRGY, a thermal management solutions company, plans to open a new 330,000-square-foot cutting-edge facility in Mesa.

Here are some of the personal stories of the people heat has claimed: Vivian Stewart was a “fiercely independent” but a “good woman,” according to her daughter, Gina Leoni, who blames her mother’s ...

Since 2020, at least 270 people in Maricopa County have died at home from heat-related causes when their cooling systems failed or were shut off.

The man-made reservoir in the Tonto National Forest is set to be closed for four months beginning in September 2026 for scheduled dam maintenance.