The point is not the size of the effect it is there being an effect at all. The author declares that ones view on climate change is inherently a crony belief be

The point is not the size of the effect it is there being an effect at all. The author declares that ones view on climate change is inherently a crony belief because there is no skin in the game not that there isn't enough skin in the game. In fact people's perceptions of the relative importance of their actions is generally bigger that it really is from a global view. Their natural scope is the tiny world they inhabit not a birds eye view of society.