Nature Climate Change, Published online: 16 October 2025; doi:10.1038/s41558-025-02462-3Scenarios, generated by integrated assessment models in model intercomparison projects (MIPs), play a central role in climate decision-making. This Perspective discusses the challenges of the current approach and proposes a new MIP platform with a transparent and inclusive process.
Observations from the Little Bunker
Last updated: October 21, 2025 10:09 PM
Atmospheric CO₂
424.8 ppm
+18.0
ppm/year
Atmospheric CH₄
1933.54 ppb
+12.29
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year