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A global system of ocean circulation?often called the Great Ocean Conveyor.

Circulatory System of the Ocean

A global system of ocean circulation—often called the "great ocean conveyor"—transports vast amounts of heat and salt around the planet via warmer surface currents (red) and colder deep currents (blue). It plays a central role in determining Earth's climate. (Illustration by Jack Cook, Woods Hole Oceanographic Institution Graphic Services)


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