What is El Niño? The name 'El Niño' is widely used to describe the warming of sea surface temperature that occurs every few years, typically concentrated in the central-east equatorial Pacific. An El Niño is declared when sea temperatures in the tropical eastern Pacific rise 0.5 °C above the long-term average.
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For example, according to the U.S. National Oceanic and Atmospheric Administration (NOAA), El Niño is coming to an end, and ocean conditions are starting to move to a neutral phase, with a 60 per cent chance that they will go into a cooling phase, called La Niña.
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