The city of Montreal recently banned single-use plastic in restaurants. The result: my Iced Latte at Starbucks was served in a double-walled bleached paper cardboard cup, with a bleach paper, dyed green, and PFAS-infused straw.
All the evidence indicates that the end-to-end environmental impact of these products far outweighs the plastic they replaced.
Virtue-signalling, not science, guides these decisions.