The area covered by sea ice at the North Pole has been declining for decades, and this decline has been accentuated since the beginning of the millennium. So much so that the Arctic could experience ice-free September as early as the 2030s, and at the latest in the 2050s, according to a study published Tuesday in the journal Nature Communications.
During this work, Seung-Ki Min, a researcher at Pohang University of Science and Technology (South Korea) and his colleagues sought to highlight the impact of human activities on the extent of sea ice in this region of the globe. They compared previous climate model simulations with satellite observation data collected between 1979 and 2019. They also developed several hypotheses (with or without greenhouse gases, with or without aerosols, etc.) to evaluate the response of sea ice to these different factors and quantify the impact of each of them.
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«We find that the models...
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