Scientists say a record-smashing March heat wave in the U.S. Southwest shows climate change is already driving more dangerous ...

It rewrote March record books and even topped a few April records. Here's our full recap on this historic early spring heat ...

A March heat wave brought soaring temperatures the western U.S. Now it's moving east. Here's how climate change may be ...

The spring heat wave that baked the West for over a week has finally moved along, after setting more than 1,500 temperature ...

The physical area of this heat wave likely dwarfs two other historic heat waves — one in 2012 in the Upper Midwest and ...

An oppressive heat wave across much of the western United States had cities and their residents sweltering through conditions ...

More than 85 locations have already set new daily records for the hottest March day on record, including in California, and ...

The most intense March heat wave ever has been one for the record books. With more than 65 locations already setting new ...

Eight states have set all-time high temperature records for March during this heat wave. On Wednesday in North Shore, Calif., ...

From the Pacific Northwest to Antarctica, it's extraordinary warmth that's punching through climate norms with the most force.

A long-term warming trend is set to meet a short-term global heat-up, which could bring unprecedented heat into 2027.

Unprecedented March heatwave shatters records across US this week - Scientists said this record-shattering heat would be ...