Antarctic sea ice has shrunk by an area nine times the size of Britain

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Antarctic sea ice has shrunk by an area nine times the size of Britain
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Today’s coverage is far below the average between 1981 and 2010. What will be the consequences?

too, the Antarctic fared rather differently. Between 1979 and 2014 its annual sea-ice extent increased slightly overall. It then declined rapidly, falling from an all-time high in 2014 to an all-time low in 2017. That record was then broken in 2022, and again in February 2023. There have been two further record lows this year.

It is not yet clear why there has recently been such a precipitous drop in Antarctica’s sea ice, nor why it rose somewhat before that. Various theories have been floated for the sudden decrease, including shifts in the strength of winds circling the continent and a warmer ocean. Scientists, disturbed by the steep downward trend in recent years, are calling for more research into exactly how climate change is affecting Antarctica. They are also increasingly worried about the consequences.

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