Heat

This summer was the hottest on record across the contiguous U.S. and a new report says that's attributable to carbon pollution. The impacts of climate change were especially evident in Arizona.

A 5-year-old Peoria boy died Sunday after being left in a hot car. Now the boy’s parents are facing negligent homicide and child abuse charges.

Now, one state lawmaker is demanding answers from the Arizona Department of Corrections as budget cuts put a stop to a planned HVAC overhaul across our state’s prison system.

Greg Kats is the founder of the Smart Surfaces Coalition. He says Phoenix could be a model for climate change — instead of a victim of it.

The climate and sustainability program at Discovery Partners Institute at the University of Illinois Urbana-Champaign wants to find ways to get people heat information that is more specific to particular locations at particular times, rather than a static kind of map.

The variable climate patterns in the Pacific Ocean are associated with changing weather patterns globally. UA professors contributed to a study that found they are growing more extreme as greenhouse gas emissions are contributing to climate change.

The National Weather Service has issued another extreme heat warning for the Phoenix area. This one is in effect Tuesday through Thursday.

Learning declines as students suffer mentally and physically in hot environments.

Phoenix has now covered 200 miles of city streets with cool pavement. The city has been applying the light, reflective coating since 2020 with the goal of reducing the urban heat island effect.

This year’s extremely hot summer immediately followed the hottest spring on record and hottest winter on record. That puts 2026 on-track for the hottest year-round temperature on the books in Phoenix.