State of climate report 2024
March 25 , 2025
11 hrs 0 min
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- 2024 is the warmest year in the 175-year observational record.
- It was likely the first calendar year to be more than 1.5°C above the pre-industrial era.
- The global mean near-surface temperature of 1.55 ± 0.13 °C above the 1850-1900 average.
- 2024 saw the highest ocean heat content in 65 years, with the warming rates doubling since 1960.
- The rise of 2.1 millimetres per year recorded between 1993 and 2002 has been dwarfed by a 4.7-millimeter increase between 2015 and 2024.
- Tropical cyclones, floods, droughts and other hazards in 2024 have displaced the highest number of people since 2008.
- 36 million people were forced from their homes in 2024.
- In eight countries, at least one million more people faced acute food insecurity compared with 2023.
- In 2023, atmospheric CO₂ reached 151% of pre-industrial levels, the highest in 800,000 years.

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