When it goes off, El Niño appears at Christmas, hence its name “Child Jesus” given in the 19th century by Peruvian fishermen.
It results in the warming of the surface waters of the eastern equatorial Pacific.
The child has a little sister, La Niña, who causes the opposite effect, with colder waters.
Alternating over several years, these natural phenomena combined with the oscillation of atmospheric pressure exert a major influence on the climate of different regions of the world.
This is the third time since recordings began in 1950 that…
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