[Red Steel]

What is the thermohaline circulation?

The thermohaline circulation is a global ocean circulation. It is driven by geographic differences in the density of sea water, which are controlled by temperature (thermal) and salinity (haline). In the North Atlantic this circulation transports warm and salty water from the tropics to the north.

Oceanic ridges are areas of volcanic activity, areas that are heated. Oh yeah, it plausible to say it plays a salient part in ocean water convection.

[Robert A Cook PE]

But compared to billions of tons of very cold water right around the vents, and very, very slow expansion of the relatively little molten rock actually present at any given time, the water (always flowing past the rapidly cooling rock) overall in the ocean doesn't heat up at all.

Main ocean currents are most strongly affected by the Coriolis effect - which is why EVERY ocean has a similar pattern of west-running currents near the equator, north-runnning current on the west shore, east on the north face, and then south-running currents on the east coast. (Above for north hemisphere.

Stop the earth, and the currents will quickly stop. Salt and temperature affect more the depth where the fastest currents flow, not their overall clockwise direction.

The premise if this story, the words used by the writer are very, very poor.