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Countries with cans / plastic bottles deposits systems (Pfand)
(1.bp.blogspot.com)
Dark green is implemented, light green is project
Source: https://laconsignemaintenant.blogspot.com/p/la-consigne-en-europe.html (French)
The thing is, we have kerbside pickup so the bottles weren't going in the trash before. It's just that now I have a lot of extra steps and need to keep yet another separate container for plastic.