During the 1970s, Arctic cold fronts were caused by very cold air in the Arctic – but the present (nearly identical) cold fronts are now caused by very warm air in the Arctic.
For the second straight year the Northern Hemisphere is experiencing unseasonably cold winters. Deaths are being blamed on the bitter subfreezing temperatures, and meanwhile, scientists are attempting to explain why the freeze is occurring. Climate scientists are suggesting that the cold winters, characterized by the influx of freezing Arctic air, are paradoxically related to global warming. How is this possible?
As the trend of warmer Arctic winters and melting ice masses continue in the north, larger portions of land and sea areas surrounding the Arctic are without snow and ice cover for longer periods of time. While the white snow and ice reflected the sunlight, bouncing the warming rays back into outer space, the blue sea absorbs the Sun’s rays. This causes more heat to be trapped in the Arctic area and increases the rate of global warming. The warmer Arctic air rises into the cold polar atmosphere causing the formation of a high pressure front, which causes the Arctic air to circulate. This circulation is responsible for pushing Arctic air down into the Northern Hemisphere during the winter months.