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Most consumers are unaware of the environmental impact of gold production, but around 20 tons of waste are generated in order to produce enough gold for just one wedding ring.

Qing hanSouth koreaHenri koskinen shutterstockKuiren liuBinchuan li jianshe chenDavidj crossDavidj crossnovXiaoyi shenSkyla bailyMingxin liSchool of metallurgyNortheastern universityCleaner productionShuang cui