Starting off with astronomical seasons, this system bases itself on the Solstices and Equinoxes that occur each year as Earth ...
The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...
Earth's northern hemisphere warms up literally for the astronomical start to spring. Here's what to know about the season.
The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is to blame.