Americans have been warned to brace for more winter storms as Arctic winds are set to dump more ice and snow amid freezing temperatures.

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

some of the vortex can break off or move south, bringing unusually cold weather into the U.S., Europe and Asia. The images below show how the influence of climate change from as far away as the ...