The dangerous heat wave shattering March records all over the U.S. Southwest is more than just another extreme weather blip.

And that same day, the temperature just outside Martinez Lake, Ariz., reached 110 degrees F (43 degrees C)—the highest March temperature ever recorded in the U.S. The heat wave that is engulfing much ...

‘Insurers walking away’ is the clearest sign unpredictable weather extremes are spiralling out of control, one expert says.

The recent trio of extreme wildfires, record-breaking rains and historic heat can all be tied to climate change, says one Southern California climate scientist. The unprecedented ongoing heat wave is ...

The impending US heat record is an alarming signal of how hot the planet is getting and how fast it’s happening.

Temperatures are being shattered by large margins over a vast area beyond California. "It's uncharted territory," said Baker Perry, Nevada's state climatologist.

March temperatures across the western U.S. are 10.8 degrees warmer than they would have been in a world without global ...

Meteorologists are reaching for superlatives to describe an oncoming heat wave so intense and rare for this time of year that it could leave some locations shattering their all-time temperature ...