An idealized illustration of giant meanders in the global jet stream known as wave-4 patterns, which are bringing extreme winter cold and/or precipitation (blue areas) to parts of North America and ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

Climate scientists have long watched the jet stream with fascination and growing concern. These rivers of air racing across our planet at altitudes of roughly 5-9 miles dictate much of our day-to-day ...

TULSA, Okla. — While we live well below the jet stream, it affects our everyday weather. This current of winds between 4 and 8 miles above the surface, guides storm systems around the globe. On ...

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(Phys.org) —Research from the University of Sheffield has shown that unusual changes in atmospheric jet stream circulation caused the exceptional surface melt of the Greenland Ice Sheet (GrIS) in ...

When the bubonic plague reached England in the summer of 1348—spread by fleas, lice, or infected humans, according to the latest theories—it reached a breeding ground for disease. Londoners’ immune ...

When the bubonic plague reached England in the summer of 1348 — spread by fleas, lice, or infected humans, according to the latest theories — it reached a breeding ground for disease. Londoners’ ...