The North Pole was above freezing on Sunday after an extreme winter warming event caused temperatures to climb more than 36 F ...

What is space weather, what causes it, and how does it affect humans? Physicist Robyn Millan, who co-chaired a recent ...

The sea ice in the Arctic was the second lowest on record for January last month, according to a US analysis released Tuesday ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its ...

The National Oceanic and Atmospheric Administration measures the Great Lakes ice coverage and takes satellite photos daily. The lakes are about 23% ice-covered now.

The Arctic air mass over Michigan and the whole of the Midwest may stick around as late as Wednesday, the National Weather Service said. "A bitterly cold airmass will remain in place for much of ...

A day after a storm dumped between 4 and 6 inches of snow on most of Massachusetts, an arctic airmass has settled ... according to the National Weather Service. The coldest temperatures are ...

Monday also marks another blast of arctic air into New Mexico. This air will be much colder than the first arctic blast we saw on Saturday. Many locations could see record low high temperatures ...

THE CANADIAN PRESS/Christinne Muschi FREDERICTON — A mass of cold air that meandered south from the Arctic has sent temperatures plunging with wind chills making it feel like -40 Celsius or ...