GCMs generally project an increase of poleward energy transport (PET) in the atmosphere and decrease of it in the ocean during global warming. In this paper, we argue both of these changes directly result from the spatial pattern of CO2 radiative forcing. To test this idea, we conduct denial experiments with a coupled GCM, in which CO2 forcing is homogenized using a special CO2 prescription scheme. To dissect the radiative forcing and feedback effects on atmospheric and oceanic PETs respectively, we also developed a new set of radiation kernels – we welcome everyone to use these kernels! Another interesting finding of this paper is that we find we can kill Arctic warming amplification by varying the CO2 forcing! Read more in the paper!
AtmRad @ McGill 