The sea ice has not returned to anywhere near expected levels. In fact it is at the lowest levels for this time of year since records began 45 years ago.
ANTARCTICA — As the Northern Hemisphere swelters under a record-breaking summer heat wave, much further south, in the depths of winter, another terrifying climate record is being broken. Antarctic sea ice has fallen to unprecedented lows for this time of year.
But Ted Scambos, a glaciologist at the University of Colorado Boulder, said that speaking in these terms may not be that helpful. “The Antarctic system has always been highly variable,” Scambos said. “This [current] level of variation, though, is so extreme that something radical has changed in the past two years, but especially this year, relative to all previous years going back at least 45 years.”
In late February of this year, Antarctic sea ice reached its lowest extent since records began,at 691,000 square miles. A lack of sea ice could also have significant impacts on its wildlife, including krill on which many of the region’s whales feed, and penguins and seals that rely on sea ice for feeding and resting.
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