EI Nino is

The correct answer is a warm ocean current. El Nino refers to the unusual warming of the central and east-central equatorial Pacific Ocean which affects global weather.The warmer waters of the Pacific Ocean cause the winds in various regions to REVERSE, like the trade winds that come towards India.This change of wind direction leads to warmer WINTERS and summers and a decrease in rainfall during the monsoon.Most of the time, it also leads to drought.Effects of El Nino:​El Nino affects global weather.It favors eastern Pacific hurricanes and TROPICAL storms.Recorded unusual rainfall in Peru, Chile, and Ecuador are linked to the climate pattern.Over India, the El Nino has USUALLY been the harbinger of drought and the La Nina of rain.There is also an opposite of an El Nino, called La Nina means The Little Girl in Spanish.This refers to times when waters of the tropical eastern Pacific are colder than NORMAL and trade winds blow more strongly than usual.Collectively, El Nino and La Nina are parts of an oscillation in the ocean-atmosphere system called the El Nino-Southern Oscillation, or ENSO cycle.