In 2017 we said next year’s Tokyo Olympics would become known as the circular economy games. The unveiling this week of the medals was both symbolic – and indicative – of the steps being taken to secure that legacy.

Answering a call from the organisers over two years ago, the public in Japan got busy and began donating their discarded electronic devices, which were then recycled into gold, silver and bronze medals.

“Manufactured from recycled mobile phones and small electronic devices, these medals are 100% sustainable and would not be possible without the generosity of the people of Japan,” the Tokyo 2020 team said. “[They are] designed to resemble rough stones that have been repeatedly polished and now shine brightly, reflecting the athletes journey from beginner to Olympic champion.”