Scientists 'shocked' by extreme events in Antarctica as Earth heats up

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Scientists 'shocked' by extreme events in Antarctica as Earth heats up
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Recent unprecedented events in Antarctica, such as shrinking sea ice, record-breaking heatwaves, and the collapse of ice shelves, have scientists concerned about the future.

In recent years, there have been many unprecedented events in Antarctica, from low levels of sea ice to record-breaking heatwaves and the collapse of ice shelves. It is virtually certain that even more extreme events will happen and become common, with consequences including accelerating ice loss that leads to coastal flooding around the world.

known as the polar vortex, keep out warm air from the north, but in this case the warm air penetrated deep into the interior, Siegert says. The formation of sea ice around Antarctica had been defying expectations, hitting a record high in winter 2014. But since then, much less sea ice than usual has been forming each winter, reaching a record summer low in 2017. That record was broken in 2022 and smashed this year.

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