One of the most polluted elements of a city is air traffic and only because of COVID19 there was a dramatic drop in CO2 emissions that also represents a drop in profits for the sector and individual freedom. So, what are the lessons learned from this pandemic? Maybe, we need to restrict individual freedom and rights to get into green? To accept irreversible financial losses? Making people individually responsible?  Leading macro projects by Governments and leave the rest to free consumption options? Any of these aspects, isolated, would not lead us into green cities, instead, micro-projects coming from the particular needs and habits of communities, leading by their own citizens, empowered and within a direct impact on Governments may truly shape a global commitment towards SDG 11 from a more personal approach.