Bring it on
Cloud cover reduced following the eruption of efefeofeoifjoeifjoeifoeifoeifjoeifoeifjoeifjoeifj (or something like that...) with an attendant drop in air temperatures of about 3°C, IIRC.
Keep the aeroplanes out of the sky for as long as possible. In fact, ban any air travel between two points that can physically be reached by train, which should simultaneously improve the climate, and remove such carbuncles as Easyjet and Ryanair.