David Fogarty in The Straits Times:
A major ocean circulation that forms around Antarctica could be headed for collapse, risking significant changes to the world’s weather, sea levels and the health of marine ecosystems, scientists say, offering a stark warning about the growing impacts of climate change.
Global warming is accelerating the melting of ice in Antarctica, and the increased amount of fresh water flooding into the ocean is disrupting the flow of the Antarctic overturning circulation, according to a study published on Wednesday in the journal Nature.
The Antarctic overturning circulation is part of a global network of currents that shift heat, oxygen and nutrients around the globe.
More here.