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

Global temperatures were the hottest on record in 2024; it was the first year where the average temperature topped 1.5 degrees Celsius above preindustrial times.

Jan 11, 2025 - 07:30
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2024 was Earth’s hottest year on record, passing a dangerous warming threshold

It’s the first time the common temperature topped 1.5 degrees Celsius above preindustrial phases

A world diagram of Earth's freshest temperatures in 2024.

Nearly in each pickle across the globe, it was hotter than the common from 1991 to 2020. In some locations, such as the Canadian Arctic, temperatures had been as noteworthy as 5 degrees Celsius (the darkest red) bigger. Blue colors mark the few regions the place temperatures had been cooler than the common.

ERA5. Credit rating: C3S / ECMWF.

It’s reliable: The 12 months 2024 was certainly the most well liked on file. It was additionally the first 12 months in recorded history that Earth’s common temperature was bigger than 1.5 degrees Celsius above preindustrial phases.

Scientists outlined those grim milestones in a file released January 10 by the European Union’s Copernicus Local climate Alternate Service. More than one diversified global details had been smashed throughout 2024, the researchers famed, including for atmospheric greenhouse gas phases, air temperatures and sea ground temperatures.

Earth’s global temperature in 2024 was 15.10° C — 1.6 degrees C bigger than the common from 1850–1900, designated as the preindustrial reference length. It was additionally 0.72 degrees C bigger than the planet’s common temperature from 1991–2020.

Going up

Global common temperatures enjoy been on the upward push since 1967, culminating in 2024’s file-breaking heat. The 12 months was additionally the first on file to high 1.5 degrees Celsius above preindustrial temperatures.

July 22, 2024, was a selected outlier: The total planet was sweltering, bringing the common global temperature to a new file excessive of 17.16° C (63° Fahrenheit).

The file’s finding cements what was already obvious by December: the amped-up temperatures on land and sea in 2024 had been unparalleled since file-conserving started — and the warmth had lethal consequences across the globe.

The planet’s rapidly heat-up is already increasing the annual global tally of uncouth climate events, from wildfires to drought to rapidly hurricane intensification. Retaining the worldwide common temperatures to below that 1.5 stage C threshold — in particular by lowering humans’ greenhouse gas emissions — would tremendously lower the threat of those hazards, as described intimately in a 2018 special file by the Intergovernmental Panel on Local climate Alternate.

The 12 months 2024 wasn’t the first time Earth’s temperatures enjoy risen above the 1.5 stage C threshold — pockets of the planet enjoy risen above that benchmark a sizable selection of occasions in the final decade, for instance (additionally the warmest 10 years on file). And 2023 came awfully discontinuance.

But 2024 was the first 12 months the whole globe surpassed the threshold.

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