The world's largest waterfall isn't on land. It is hidden beneath the ocean, where billions of litres of water plunge every second

An immense underwater waterfall exists between Greenland and Iceland. Cold, dense seawater sinks beneath warmer Atlantic waters creating this cascade. This hidden giant plays a crucial role in ocean currents and global climate. Researchers use specialized instruments to monitor this vast, dynamic underwater system. Its flow influences heat and salt distribution across the Atlantic Ocean basin.

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