The difference in plastic bag consumption in the UK after supermarkets put a £0.05 fee on them.
Logical mind would say people reduced carrier bag use to keep the £0.05
Psycho-logical mind would say £0.05 acted as a signal of guilt
@rorysutherland
You literally can't buy anything with £0.05 in a supermarket in 2019.
Yet it's reduced plastic bag consumption by 90%.
What a powerful habit change
A £0.05 negative reminder can change a whole nations behaviour + do wonders for the enviroment