Some of the arson cases have led to arrests, while one suspected arsonist remains at large. Here's what to know.

A rural Arizona couple learned they had no fire protection coverage when a fire broke out on their property Monday.

STATEN ISLAND, N.Y. — A massive fire broke out at a battery energy storage system facility in Peoria, Arizona, earlier this month, requiring a large-scale response from multiple area fire departments ...

The Arizona Trail stretches 850 miles from the state's northern border with Utah to its southern border with Mexico. Republic reporter Joan Meiners is biking the trail, start to finish. On the second ...

When Dragon Bravo ignited, in Grand Canyon National Park, officials decided to let it burn. Then the fire spread out of ...

Opinion, comment and editorials of the day ...

Prescribed burns are common tools for land managers, but researchers say Indigenous burning went beyond that, using fire as a land stewardship tool to care for the environment. Tree rings are ...

Research in the U.S. Southwest could expand lifesaving efforts for hazards that follow wildfires across the globe. Students and researchers assisted Luke McGuire, left, a geology professor at the ...

Editor’s note: 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 ...