Arizona is one of more than two dozen states suing the EPA for rescinding the endangerment finding, the key scientific basis ...

A coalition of states, counties and cities is taking legal action against the U.S. Environmental Protection Agency (EPA) in ...

A spike in temperatures highlights the felt reality and scientific certainty of climate change. So why is this still such a ...

The hot weather is a health risk for people, but it's also bad news for the region's snowpack and could trigger an earlier ...

Phoenix experienced its hottest winter on record, ending with a string of 90-degree days. Experts say it's a sign of a ...

The 2026 allergy season is predicted to be longer and more intense, with high pollen levels in 29 states. Warmer temperatures have caused an early start to allergy season in southern and western ...

Over seven weeks this fall, Arizona Republic climate reporter Joan Meiners is biking the length of the 850-mile Arizona Trail from Utah to Mexico to report on how climate change is affecting the state ...

Arizona farmers face increasing stressors due to climate change, but there are solutions. It will take some effort, but they are in reach.

Middle school, high school and college students led the effort in drafting and campaigning for the resolution.