Antarctica’s deep ocean circulation is slowing down – Expert Reaction

Melting glaciers release freshwater into the ocean, and this water is less dense than salt water – so it reduces the amount of water sinking near Antarctica, slowing the ocean currents. Slowing of the deep circulation could have impacts for the climate, sea level rise, and ocean ecosystems. A recent study projected a slowdown of the Antarctic overturning by 40% by 2050, and this new research confirms this change is already occurring.

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