Years ago, fishermen in Peru and Ecuador in South America noticed that during some winters, the ocean became warmer than usual. The fishermen gave the warmer water a name. They named it "El Niño." In Spanish, El Niño means "the little boy." When the ocean became warmer, the fishermen noticed that they could not catch as many fish. The fishermen also noticed that the amount of rain increased.

Have a look at this movie to see what happens to the world's oceans in an El Nino event. Click the start button to begin.

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