Relevant bits:

As extreme as this year’s temperatures were, they did not catch researchers off guard. Scientists’ … 2023’s heat is still broadly within this range, albeit on the high end. … one exceptional year would not be enough to suggest something was faulty with the computer models … Global temperatures have long bobbed up and down around a steady warming trend because of cyclical factors like El Niño … has intensified since, possibly signaling more record heat to come in 2024. … “I’m not willing to say that we’ve ‘broken the climate’ or there’s anything weird going on until more evidence comes in.” … Until the current El Niño is over, “it’s unlikely we’ll be able to make definitive claims,” he said.