A warm-up begins today across the Desert Southwest as a ridge of high pressure begins to build over the region. Changes are ...

Undoubtedly, science will be in political news with the new administration coming in. For now, however, I want to think about something completely different.

Sean McLaughlin of Arizona's Family stations and Amber Sullins of ABC 15 answer your burning questions about climate change ...

The Democratic candidates for Arizona Corporation Commission made climate change an issue, but it did them no good in this ...

With wildfire activity flaring in the Northeast and continued burns in California, scientists are concerned by coast-to-coast ...

Brown University biologists identified when tomatoes are most vulnerable to heat and how some varieties resist it.

Donald Trump gained ground in all four counties on the Arizona-Mexico border. Here's where his margin improved the most.

Collaborating with scientists from the University of Arizona, the experts learned that heat stress ... Creating a molecule ...

A natural gas utility that serves more than 2 million customers in Arizona, Nevada and parts of California is being fined $2 million by regulators in Arizona ...

So-called ozone season in the Phoenix area typically runs from April to September. Concentrations of surface-level ozone, an ...