I would suggest a ban on selling alcohol in glass. But I think a ban on glass stubbies would do it. Put beers, RTDs and other stuff that currently comes in stubbies in either aluminum cans, or plastic bottles.
So you can still have wine and spirits in glass. There's a whole lot less of them, and they're a small fraction of the smashed glass pollution problem. They're almost never the ones I find smashed on streets, in green belts, or at festival sites.
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