Americans in about three dozen counties are being exposed to dangerous air pollution that puts them at a heightened risk of ...

Even as the EPA moves to block greenhouse gas reporting, satellites and aircraft are stepping in to expose the truth.

The Riverside Baths, which became the Land Park Plunge, once attracted a heavyweight champion boxer and was popular with ...

The White House is considering inviting Ukrainian President Volodymyr Zelenskyy to Alaska, where President Donald Trump is ...

As summer temperatures peak across the northern hemisphere, a team at Reuters investigated the dangerous heat conditions ...

Monsoon chances are back in the forecast for the next few days. The high on Aug. 13 in Phoenix will be about 110 degrees. This weekend in the Valley, highs will be in the mid-100s. PHOENIX - One more ...

The high on Aug. 12 in Phoenix was about 112 degrees. Rain chances increase over the next couple of days in Phoenix. PHOENIX ...

Birds of feather don't always flock together, despite the adage. A study published in the Journal of Raptor Research tells ...

What time is liftoff? ULA's Vulcan could be visible for most of Florida pending weather. Did your city make the rocket launch visibility map?

More record heat is on the way in the Valley. Today, we'll see a high near 117 degrees. An Extreme Heat Warning remains in ...

The rate of human-produced light is increasing in the night sky by as much as 10% per year, making it difficult for ...

Forecasting wildfire smoke is hard. We review the best tools to help you predict when unhealthful levels of smoke are coming.