A bleak side-by-side image of the weather on opposite sides of the United States this week appears to show a stark shift in ...
On Jan. 23, 1971, a weather observer at Prospect Creek Camp measured a temperature of minus 80 degrees Fahrenheit.
A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...
"The most climate-stressed regions all contained permafrost, which is vulnerable to thaw as temperatures rise," researcher Sue Natali said.