Earth's Warming Rate Doubles Since 2015, Exceeding Paris Agreement's 1.5°C Limit by 2030 Possible

August 3, 2026
Earth's Warming Rate Doubles Since 2015, Exceeding Paris Agreement's 1.5°C Limit by 2030 Possible
  • Overall, the article highlights a shift toward a faster-than-expected warming trajectory and the potential implications for near-term climate targets and policy planning.

  • The study did not seek to identify a specific cause for the acceleration, but notes that climate models can exhibit periods of speeding warming and that the observed acceleration is consistent with modeled behavior.

  • Two statistical approaches—quadratic trend analysis and a piecewise linear model—both indicate the warming rate has accelerated, starting to become evident around 2013–2014 and clearly around 2015.

  • The study reports a 2+ decade acceleration as the fastest sustained warming since instrumental records began in 1880, with the evidence having more than 98% statistical certainty.

  • A Potsdam Institute for Climate Impact Research study, published in Geophysical Research Letters and reported by ScienceDaily, finds Earth's long-term warming rate has accelerated since around 2015, reaching about 0.35°C per decade compared to under 0.2°C per decade from 1970 to 2015.

  • A new analysis from the Potsdam Institute for Climate Impact Research finds that global warming has accelerated since around 2015, after removing natural temperature fluctuations from the data.

  • The study emphasizes that future warming largely depends on the trajectory of carbon emissions reductions; faster cuts in CO2 could slow the long-term warming trend.

  • Natural influences such as El Niño, volcanic eruptions, and solar activity were adjusted for, and the extreme warmth of 2023 and 2024 remained among the warmest years in the instrumental record.

  • 2023 and 2024 remained the warmest years on record even after adjusting for El Niño and other natural factors, indicating the influence of ongoing anthropogenic warming beyond natural cycles.

  • If the current warming rate persists, the 1.5°C Paris Agreement threshold could be exceeded before 2030, depending on future CO2 emission reductions from fossil fuels.

  • If the current warming pace continues, the world could exceed the Paris Agreement's 1.5°C limit before 2030, though sustained warming over multiple years is required to cross the threshold, not just a single hot year.

  • The study uses five global temperature datasets (NASA, NOAA, HadCRUT, Berkeley Earth, ERA5) and two statistical methods to isolate the long-term warming signal from short-term variability, confirming an acceleration with over 98% statistical certainty across all datasets.

Summary based on 2 sources


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