Went to Iceland a few years ago and the biggest thing I noticed was how clean everything was. In the US, at least where I am, trash is literally part of the street. Little black “gum” streaks, random paper flying about…
I don’t remember ever seeing any litter of any kind anywhere we went on the island.
I do remember seeing a random piece of raw meat on a meadow but that was it and I’m not sure I’d call that litter.