2024 was Earth’s hottest year on record, passing a dangerous warming threshold

It’s official: The year 2024 was indeed the hottest on record. It was also the first year in recorded history that Earth’s average temperature was higher than 1.5 degrees Celsius above preindustrial levels.

Scientists outlined those grim milestones in a report released January 10 by the European Union’s Copernicus Climate Change Service. Multiple other global records were smashed throughout 2024, the researchers noted, including for atmospheric greenhouse gas levels, air temperatures and sea surface temperatures.

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