These tunnels are designed for 100,000 years

Onkalo, on the Finnish island of Olkiluoto, is planned to be the first geologic storage facility for high-level nuclear waste: eventually sealed for 100,000 years. I got to see inside.

Thanks to all the team from Olkiluoto, TVO and Posiva: you can find out more at http://www.posiva.fi/en/final_disposa...

Edited by Michelle Martin (@mrsmmartin)
Audio mix by Haerther Productions https://haerther.net

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