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Global warming is on the cusp of crucial 1.5 °C threshold, suggest ice-core data

New method finds human-caused warming is about to reach the limit set by the Paris climate agreement.
By
  1. Gemma Conroy
A digital highway sign displays a warning to passing cars: 'Extreme heat, stay cool, drink water'.

Rising temperatures worldwide might already be nearing an important benchmark. Credit: Justin Sullivan/Getty

Global warming caused by humans might be closer to a crucial climate threshold than current estimates suggest. A study1 of Antarctic ice cores argues that, in 2023, human-driven warming reached 1.49 °C above pre-industrial levels.

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doi: https://doi.org/10.1038/d41586-024-03655-0

References

  1. Jarvis, A. & Forster, P. M. Nature Geosci. https://doi.org/10.1038/s41561-024-01580-5 (2024).

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