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The extent of the Arctic sea ice was estimated to be 7 512 000 km2 on a particular day in 1982. On the same day

The extent of the Arctic sea ice was estimated to be 7 512 000 km2 on a particular day in 1982. On the same day in 2022 the estimate was 5 202 000 km2 . Calculate the percentage decrease in the Arctic sea ice extent over the forty-year period. Give your answer correct to three significant figures

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