Highly recommend this "If Books Could Kill" episode on the concept of "nudges": https://podcasts.apple.com/us/podcast/nudge-part-1-a-simple-solution-for-litter

Highly recommend this "If Books Could Kill" episode on the concept of "nudges": https://podcasts.apple.com/us/podcast/nudge-part-1-a-simple-solution-for-littering-organ/id1651876897 https://podcasts.apple.com/us/podcast/nudge-part-1-a-simple-... (critical of the concept but I think quite fair and well-researched)