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Reduction of the ice sheet in the Southern Ocean breaks record and accelerates global warming

The summer reduction (typical of summer) of the ice sheet in the Southern Ocean reached a record in January, much higher than the previous one, recorded in January 2017 — announced the Copernicus Climate Change Observatory (C3S), of the European Union, this Wednesday. fair (8). On the continent - which experienced record temperatures in 2022 - the extent of sea ice was, in January, 31% lower than average, the lowest level ever reached in a first month of the year, details the observatory.

In 44 years of satellite observations of the Antarctic ice sheet, the record monthly minimum was measured in February 2022, at less than 2 million km2, according to the American research center National Snow and Ice Data Center.

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On the other side of the world, at the North Pole, where it is winter at the same time, a below-average ice extension was also observed in the Arctic: 4% below normal. According to the Copernicus, is the third lowest measurement for a month of January.

The melting of ocean ice sheets accelerates the global warming. By functioning as a mirror, sea ice reflects most of the sun's energy, but when it melts, it leaves a dark surface that absorbs solar radiation and heats the water.

(To AFP)

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