Stratospheric polar vortex changes still trigger brutal U.S. winter cold snaps and extreme weather despite a warming climate.

The mechanism involves atmospheric waves that bounce between the upper atmosphere and ground level, amplifying weather patterns and making them more extreme. Scientists call this “stratospheric wave ...

Early signs of a possible La Niña fall and winter are emerging in some climate models, federal forecasters announced Thursday ...

Summer just started in earnest, but if you tour the lift lines of the internet, you can already hear the familiar preseason ...

The researchers drew their conclusions by abandoning popular climate models that they said in recent years have not ...

The first weeks of summer have been cruel for Europe with two heat waves leaving much of the continent under heat warnings.

In the late 2010s, when Assistant Professor Flavio Lehner worked for the National Center for Atmospheric Research in Boulder, ...

The latest science on the link between climate change and natural disasters — and how they may be playing out where you live.

Climate change left its signature on the atmosphere early in the industrial revolution, reveals a thought experiment ...