(i) Winds move the oceanic water in the form of currents.
(ii) Ocean currents move from the equatorial region to polar regions and from polar regions to the equatorial region.
(iii) This leads to the redistribution of heat on the earth.
(iv) The cold currents moving towards the equatorial region making the temperature of coastal areas in that zone milder whereas the warm currents coming in the colder region cause the temperature in coastal areas to rise. Hence, the oceans act as the controller of global temperature.
