The possibility of snow in Tampa, Fla. Record heat and fires in Australia. Scientists say climate change is exacerbating ...

The age-old debate of hot vs. cold. Count me in the hot column.

As extreme cold weather grips large sections of the United States, people still need to work and live their lives. CNN wellness expert Dr. Leana Wen has guidance.

The Mpemba effect sounds like it should be easy to debunk: hot water freezing faster than cold water? That's backwards. But ...

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 ...

Steam rising off Lake Michigan and the Chicago River Friday morning made for a stunning sight as the city saw its coldest temperatures in years. With air temperatures below zero and wind chills ...