One other excessive low for Antarctic sea ice indicators a everlasting shift

For the second 12 months in a row, Antarctic sea ice has reached near-record low ranges. This reinforces considerations that human-caused local weather change has initiated an enduring “regime shift” within the quantity of ice that varieties within the Southern Ocean annually.

“Last year we were talking about whether Antarctic sea ice is undergoing a regime shift. Not anymore,” says Edward Doddridge on the Institute for Marine and Antarctic Research in Australia. “Antarctica has fairly definitively answered that query for us. Now we’re speaking about what the impacts of that…