"Eat your vegetables" is never the answer. In climate change, because of the coordination problems, "Eat your vegetables" is so emphatically not the answer that it shouldn't even be discussed as anything except a desperate, ineffective stopgap.

People will keep eating candy. They will never eat their vegetables, unless they taste like candy. It's pointless to imagine worlds in which they eat their vegetables and everything is great because, although it's possible to write a plan to get from here to there, those worlds are strictly fantasy. The plan can not be followed. I could also write a plan for the sun to rise in the west—and it would also fail, for largely the same reason.

If you want to solve the problem, make a better, cheaper vegetable that tastes like candy.