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Tokyo 2020 Olympic Games medals made of recycled metals
For the Tokyo 2020 Olympic Games, the Olympic Committee launched an appeal for donations of used electronic products. After several months of collection, many electronic devices - including 6 million smartphones - have been recycled. They were melted to extract 32 kg of gold, 3,500 kg of silver and 2,200 kg of bronze. The 5,000 medals are made of 100% recycled manufactured products. Photo credit: Tokyo 2020
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