The stratosphere suddenly heats up. How exceptional is this? Should we be concerned about that? And does climate disruption have anything to do with this? Five questions answered

High above the North Pole in a layer of air called the stratosphere, temperatures are rising sharply. One then speaks of a ‘sudden stratospheric warming’. It is a natural phenomenon that does not occur every year, but it can have an influence on the weather here with us. But how rare is this warming? Do we have to worry? And does climate disruption have something to do with it?

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