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appalachiablue

(42,991 posts)
2. Very interesting, mine shafts & tunnels for farming. Tx.
Thu Feb 3, 2022, 08:04 PM
Feb 2022

.. Why tunnels?: A former World War Two air-raid shelter 100ft (30.5m) under Clapham Common, London, is already being used to grow greens for local supermarkets and restaurants.

> Unlike current agriculture, farming underground is unaffected by irregular seasons, climate change and the extreme weather witnessed throughout 2018.

Almost all the ingredients needed for growing crops such as lettuces, carrots, mushrooms and strawberries are already in place.

The air temperature and humidity levels are generally temperate and constant while there is a ready water supply as well as carbon dioxide.

"Tunnels and shafts would need less energy with heating, so are very attractive for food production. They're almost perfect," said Prof Riffat.

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