Maybe we should do a fundraiser for an ad campaign which shames needless use of combustion engine cars, fossil heating, flying, plastics, and meat consumption. Similar to the warnings on cigarette packages. And aimed at the well-informed, resourceful middle class which can change without real discomfort, and knows they can do better, but is too lazy to act.

I think that would work. Much of advertising sells us pictures how we want to be seen by others - people are motivated by pride and what appears cool.