Antarctic sea ice hits near-record low, raising concerns over a permanent retreat

For the second consecutive year, Antarctic sea ice has reached near-record low levels, sparking fears of a lasting "regime shift" caused by climate change. In February 2024, ice coverage hit the second lowest extent on record, staying about 8% below average. Experts now believe the region is experiencing a significant and persistent change. Warmer ocean waters, driven by climate change, prevent ice formation and may disrupt Antarctic ecosystems, affecting species like seals and penguins. The reduced sea ice could also impact global ocean circulation and carbon dioxide emissions from the Southern Ocean, raising further concerns. (New Scientist)