The rate of opioid overdose deaths, among most age groups, has been on the rise in recent years in Maricopa County — and most of those deaths were classified as unintentional. It’s one reason why the city of Tempe is making it easier to get free Narcan.

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.

A new report says it's taking too long for the state board responsible for regulating doctors to deal with complaints, putting patients at risk.

KJZZ’s Alex Hager joined The Show to talk more about what some of the plans metro Phoenix cities have to make up for lost Colorado River water look like.

Grand Canyon experts say the recent deadly flash floods in Bright Angel Creek were not unusual, but a wildfire burn scar and major manmade infrastructure in the area changed things.

The Arizona Corporation Commission has recently approved the conversions of old coal plants, that had been scheduled to retire, to natural gas without requiring a new hearing process to assess environmental impacts of burning the new fuel.

An international team of researchers, including those from the University of Arizona, has observed 31 quasars from when the universe was 600 to 800 million years old. For reference, that’s about 5% of its current age.

A local nonprofit is trying something new to help support sexual and reproductive healthcare in the state.

Most of the Valley saw less than a quarter-inch of rain from Monday’s storms and forecasts show there’s not much chance for moisture for the next few days. But Phoenix could be in for a wet fall.

Wildfire smoke is not only harmful to the lungs. A new study from the Barrow Neurological Institute in Phoenix explains how exposure to smoke inhalation can cause damage to the brain.

A federal plan for the Colorado River means big water cuts for Arizona. The Phoenix and Tucson areas will be hit hard. City leaders say they can keep taps flowing, but solutions will be expensive.

A pilot project in the Tonto National Forest is studying a potential new way to gauge wildfire risk. It involves monitoring moisture levels in both soil and plants — both living and dead. If it goes well, the sensors could be used across different ecosystems around Arizona and beyond.