This warming causes a temporary rise in global temperatures and increases the likelihood of extreme weather events occurring in regions across the globe.
El Niño is a natural climate phenomenon in which ocean temperatures in the central and eastern Pacific Ocean near the equator rise to above-average levels. This warming causes a temporary rise in global temperatures and increases the likelihood of extreme weather events occurring in regions across the globe. El Niño has occurred eight times since 1980, most recently in 2015-2016.