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Another Extreme Low for Antarctic Sea Ice Signals a Permanent Shift


An area of missing Antarctic sea ice twice the size of Texas adds to concerns that the ice has seen a lasting “regime shift”, with consequences for ecosystems and global ocean circulation

For the second year in a row, Antarctic sea ice has reached near-record low levels. This reinforces concerns that human-caused climate change has initiated a lasting “regime shift” in the amount of ice that forms in the Southern Ocean each year. “Last year we were talking about whether Antarctic sea ice is undergoing a regime shift.

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