The largest country in North America by land area is Canada, although the United States of America (USA) has the largest population. It is very cold in the north, near the Arctic Circle ...
According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...
"For purposes of National Security and Freedom throughout the World, the United States of America feels that the ownership ...