Which country first implemented a nationwide mandatory retail 'Deposit Return Scheme' for plastic bottles, significantly reducing plastic waste in its retail supply chain?

Test your knowledge about innovative sustainability initiatives in retail across different geographical regions! The implementation of eco-friendly practices varies widely around the world, with some regions pioneering revolutionary approaches to reducing environmental impact in the retail sector. This question focuses on a groundbreaking sustainability program that has transformed how products are managed in a specific region.

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Norway (1972)
Germany (1994)
Japan (1997)
Sweden (1984)