A polar vortex is stretching due to warm Arctic waters and cold continental land, leading to severe winter weather across much of the United States. Meteorologists predict subzero temperatures, heavy snow, and ice, affecting around 230 million people. The cold snap is linked to climate change and shrinking sea ice, with the polar vortex expected to bring brutal cold, particularly in the Midwest and North. The storm is anticipated to start on Friday and could result in significant ice accumulation and snowfall. Teljes cikk (Euronews.com)