What are El Niño and La Niña?

El Niño: the world water temperatures in September 1997 | Photo: NOAA

El Niño and La Niña are complex climate cycles that occur in the Pacific Ocean around the equator. They have the power to affect the entire weather around the globe due to drastic variations in the oceanic temperatures.

They change the odds of floods, drought, heat waves, and cold seasons for…

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