WASHINGTON (AP) — Legally mandated U.S. national climate assessments seem to have disappeared from the federal websites built ...

Arizona is no stranger to heat, but recent temperature spikes are breaking records and raising serious climate concerns. Are ...

As climate change has led to more severe weather, wildfires, storms and more, many people are thinking about how to save what ...

Climate Central's new “warming stripes" show U.S. cities are heating up fast. See which places are warming most.

Mycorrhizal fungi are vital to ecosystems around the world, but remain largely understudied, especially in arid regions. They ...

State water leaders appear to be coalescing behind a new proposal for sharing the Colorado River after talks were stuck in a ...

NPR's Juana Summers speaks with Mikhail Chester, professor of engineering at Arizona State University, about how extreme heat affects transportation infrastructure.