https://www.realclimate.org/index.php/archives/2023/05/cmip6-not-so-sudden-stratospheric-cooling/
RealClimate: CMIP6: Not-so-sudden stratospheric cooling
May 21, 2023 - RealClimate: As predicted in 1967 by Manabe and Wetherald, the stratosphere has been cooling.
so suddenrealclimatecmip6stratosphericcooling