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Vital indicators of climate change - Global temperature

Vital indicators of climate change - Global temperature


In 2025, the global average surface temperature was about 1.44℃ above the pre-industrial (1850-1900) levels. The past eleven years (2015–2025) were the eleven warmest years on record globally, with the last three years (2023–2025) being the three warmest.

Global mean temperature anomalies

Global mean surface temperature change compared to 1850-1900 average
(Source: World Meteorological Organization)

Global temperature datesets

  1. Berkeley Earth
  2. CMST (China)
  3. DCENT (UK/US)
  4. European Centre for Medium-Range Weather Forecasts
  5. US National Aeronautics and Space Administration
  6. UK Met Office Hadley Centre/Climate Research Unit of the University of East Anglia (UK)
  7. Japan Meteorological Agency
  8. US National Oceanic and Atmospheric Administration