A shift could have drastic consequences.
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A new study suggests that the recent change in the fast-moving, narrow air current known as the jet stream is causing longer lasting, more severe weather patterns over North America and Europe. The findings were presented at the annual meeting of the American Association for the Advancement of Science in Chicago.
According to Jennifer Francis, a professor at Rutger Universityâ€™s Institute of Marine and Coastal Sciences, the observed change in the jet stream could be a result of increased warming of the Arctic, which has seen temperatures rise as much as three times faster than the rest of planet.