"This research illustrates clearly that carbon dioxide is the dominant control on global temperatures across geological time," said Jessica Tierney, a paleoclimatologist at the University of ...

National Oceanic and Atmospheric Administration data shows 2025 already has a 39% chance of being the second-warmest year on record, behind 2024, and a 3% chance of being the warmest year on record.

Heat warnings are increasing in major cities. At its most basic: the heat index is what the temperature feels like when ...

Jess Thomson is a Newsweek Science Reporter based in London UK. Her focus is reporting on science, technology and healthcare. She has covered weird animal behavior, space news and the impacts of ...

The AMOC has already been shown to be weakening. The collapse of the AMOC is estimated to occur if global temperatures rise by around 4°C, but statistical uncertainty around the triggering of ...

This year is “effectively certain” to be the warmest on record with temperatures climbing above a closely watched threshold for the first time. The average global temperature reached 1.62C ...

It’s the second consecutive year average global temperatures have crashed through shocking climate records and will not be the last, as planet-warming fossil fuel pollution drives temperatures ...

This fossil palm leaf (Sabalites sp.), discovered in Petersburg Borough, Alaska, is on display in “The David H. Koch Hall of Fossils—Deep Time” at the Smithsonian’s National Museum of Natural History.