The Tokyo 2020 Olympic torch, which began its 121-day relay from Naraha, Fukushima, is being powered by hydrogen in selected legs of the relay meaning there will be no carbon emissions from the torch itself.

Over 10,000 torchbearers, hand-selected from over half-a-million applicants, will have the responsibility of carrying the Olympic flame on its journey across Japan with some able to carry the hydrogen powered variant.

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