Old coal mines can be underground food farms
Article URL: https://www.bbc.co.uk/news/uk-wales-46221656
Comments URL: https://news.ycombinator.com/item?id=18581591
Points: 21
# Comments: 11
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Article URL: https://www.bbc.co.uk/news/uk-wales-46221656
Comments URL: https://news.ycombinator.com/item?id=18581591
Points: 21
# Comments: 11
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