I'm surprised to hear about the little issue there.
We have litter, but surprisingly little really. There are bins everywhere and people use them...except for smokers, that special breed of entitled asshole who think it's ok to flick their butts all of the place with abandon.
All homes have three bins, general, green and recycle and they're responsibly dealt with (allegedly) when they get to waste transfer stations.
Anyway, there's litter, but not much. I don't think I'd like to see litter all over the place. It would depress me.
I'm glad I have solar, my regret being I didn't get it sooner. It's an outlay for sure, but worth it for the savings. I got a decent system on both houses and they're repaying me handsomely. It's a drop in the ocean as far as actual reduction of carbon footprint compared to China and India, orporstions, mining and all the other main offenders, but it's something.