Earlier this month, a sudden atmospheric warming event caused the Arctic's polar vortex to reverse its trajectory. The swirling ring of cold air is now spinning in the wrong direction, which has triggered a record-breaking "ozone spike" and could impact global weather patterns.

Polar vortex is 'spinning backwards' above Arctic after major reversal event

Source: space
Source Link: https://www.space.com/earth-polar-vortex-spinning-backwards-above-arctic-reversal-event