Does a positive (warming) radiative forcing always lead to global warming? Xia et al. documented a very interesting experiment that says No. In this experiment, stratospheric ozone is increased to mimic the recovery from ozone hole. Much to our surprise, despite of a strong positive instantaneous forcing of the the ozone perturbation, a weak global cooling is observed in our simulation, which we find is largely due to an (over-)compensating high cloud adjustment. Read more about it in this article “Strong modification of stratospheric ozone forcing by cloud and sea ice adjustments“.
AtmRad @ McGill 