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

An unprecedented heat wave for the month of March is continuing to hold strong across the southwestern and western United ...

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

Meteorologists are reaching for superlatives to describe an oncoming heat wave so intense and rare for this time of year that ...

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

Mussels baked by the billions. Insect larvae cooked inside scorched cherries. Baby birds plummeted to their deaths from their ...

A sweeping new study of the 2021 heat wave reveals major ecological losses—but also surprising species that thrived, offering crucial insight into how climate extremes reshape ecosystems.

In a large area with hard-scaping like downtown, temperatures can run 20 to 30 degrees higher during the day than a rural ...

Phoenix experienced its earliest 100-degree day on record, with triple-digit temperatures arriving in March. The early heat ...

In an unprecedented heat wave, we check in on the newts, the bears, the mussels, and all those flowers that just woke up for spring.

First responders in San Diego County have been on high alert due to the unseasonable heat wave, resulting in three separate ...

Temperatures in Phoenix soared to 105 degrees on March 19, breaking the record of 97 for this date in 2017, according to the ...