Last year capped a string of historically hot years, driven by long-term warming and changes in rain patterns.

If you've ever attended a legislative hearing on an environment or climate bill, you've probably seen and heard Sandy Bahr.

The year 2025 was the fourth-warmest year on record for the contiguous United States, capping a string of warm years linked to climate change. Phoenix recorded its second-warmest year on record, with ...

More signs about climate change and Native Americans are disappearing from National Parks at Trump’s order - ‘We’re taking ...

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 ...

Livar's tendency to gloss over the influence of climate change has also caused frustration. In a Jan. 21 interview with The Arizona Republic, Livar struggled to articulate specific accomplishments and ...

Wildfires and extreme weather events in 2025 highlighted Arizona's vulnerability to climate change. The state's clean energy industry faced setbacks, as major projects were downsized, delayed or ...

Agriculture, a $9 billion industry in Arizona, is vulnerable to the increased heat and drought that's likely to accompany continued climate change, said a new federally commissioned report. "Farmers ...

The golden toad, native to Costa Rica, has not been officially seen in over 36 years. A 2022 IPCC report named climate change a key driver in the golden toad's extinction. Researchers debated whether ...

PHOENIX (KPNX) — If you feel like allergy season never seems to end, you’re not imagining it. Across the U.S., and right here in Arizona, climate change is making pollen problems worse — and ...

California: The Golden State's Expensive Water Dilemma Climate change has become one of the biggest drivers of surging water ...

Research shows Americans are increasingly fretting about disasters — and even the end times. Hiding in a cave might actually ...