Researchers Think They Know Why Winters Have Been Horrendous Lately

Climate scientists from the University of Sheffield agree that climate change may be intensifying the effects of the jet stream, which in turns may cause extreme cold weather on both sides of the Atlantic. The new study found that the recent pattern of cold winters was mainly caused by changes to the positioning of jet streams, small, meandering air currents that flow about 5-10 miles, above Earth’s surface. Researchers said another factor could be that the warming Arctic appears to be causing cold spells. Professor Edward Hanna said, “We’ve always had years with wavy and not so wavy jet stream winds, but in the last one-to-two decades the warming Arctic could well have been amplifying the effects of the wave patterns. This may have contributed to some recent extreme cold winter spells along the eastern seaboard of the United States, in eastern Asia, and at time over the UK.” (ScienceAlert)