Climate has long been one of Arizona's 5 C's, along with citrus, cotton, copper and cattle. With climate change is it still?

Arizona lawmakers are debating a bill that would protect utilities from wildfire-related lawsuits, a move that would likely ...

Grijalva spent half a century in public service and represented Arizona in Congress for more than two decades.

Those are the orders of Defense Secretary Pete Hegseth, who has long rejected climate science.

Here in New Mexico, our growing season has lengthened since the 1970s, even as stream flows have decreased. Fire season ...

A Canadian businesswoman who was arrested in the United States by Immigration and Customs Enforcement (ICE) agents over an ...

If you look at the last century in New Mexico, stretches of higher temperatures have lengthened; heat waves are hotter and ...

When I moved to Arizona in 1990, I thought I was escaping a life of allergies. Fat chance. I was told that the state had introduced too many non-indigenous plants, and that instead of finding ...

A study sheds light on how extreme weather events impact phenological processes, specifically the flight period of butterflies and moths and the flowering time of plants, with implications for food ...

Team Ocean plans to raise awareness around pollution and heat through social media and at popular events, like the World Cup ...

Arizona Gov. Katie Hobbs and Attorney General Kris Mayes have adopted sharply different approaches to handling Donald Trump’s return to the White House ...

But how do we ensure everyone has equal access to shade? Tucson, where heatwave mortality has soared, shows a path forward.