The last three years were objectively hot, numbering among the warmest since records began in 1880. But the scorch factor of recent years was actually tempered by a climate pattern that slightly cools the globe, "La Niña."
This year and next, La Niña might give way to its hotter counterpart, El Niño. Distinguished by warm surface waters in the tropical Pacific Ocean, the weather pattern has consequences for temperatures, drought, and rainfall around the world. The planet hasn't seen a strong El Niño since 2016 — the hottest year ever recorded — and the next El Niño will occur on top of all the warming that's occurred since then.
