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The ocean's 'heart' may be slowing down
How It Works UK
|Issue 202
Melting Antarctic ice is slowing Earth's strongest ocean current.
The influx of cold meltwater could slow the Antarctic Circumpolar Current by up to 20 per cent by 2050. The slowdown could affect ocean temperatures, sea level rise and Antarctica's ecosystem. The Antarctic Circumpolar Current, which swirls clockwise around Antarctica, transports around a billion litres of water per second. It keeps warmer water away from the Antarctic ice sheet and connects the Atlantic, Pacific, Indian and Southern oceans, providing a pathway for heat exchange between these bodies of water.
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