A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

‘Temperatures ranging from 10 to 20 degrees below normal may make an average week during the winter season itself a challenge ...

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) At the same time, every hurricane that formed, including the three powerful Category 5 ...