Published: April 15, 2024 4:06pm EDT The effects of ocean warming are profound and . But sometimes changes in the patterns of winds and ocean currents cause seawater to suddenly cool, instead.

Some of the fastest ocean currents in the world have been discovered off South Africa, Somalia, Kenya, Tanzania and Madagascar. These can be used to generate energy.

Ocean currents here reach power densities above 2,500 watts per square meter, making them 2.5 times stronger than top wind energy sites.