Scientists have warned that 2024 could mark the year when global warming exceeds 1.5℃ above pre-industrial levels. They attribute these predictions, at least in part, to the emergence of an El Niño event.
An El Niño is declared when the sea surface temperature in large parts of the central or eastern equatorial regions of the Pacific Ocean warms significantly – sometimes by as much as 2℃. This additional heat in turn warms the atmosphere. During El Niño years, this warming contributes to a temporary rise in the global temperature by a fraction of a degree.
