Achange in the water temp of the pacific ocean that produces a warm current

Answer;

El Nino

Explanation;El Nino is a weather pattern that begins as a result in an increase in the water temperature at the surface of the Pacific ocean that produces a warm current.It is a climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean.It has an impact on ocean temperatures, the speed and strength of ocean currents together with the health of coastal fisheries. Its events occur irregularly at two- to seven-year intervals.

D-no effect on the rate