Old coal mines in Britain could be resurrected in the form of subterranean food farms to yield large-scale crop production. Former mine shafts and tunnels have the perfect environmental conditions for farming and could produce up to ten times as much food as farms above ground. A seven square meter shaft can return 80 tonnes of food per year. With 150,000 abandoned mine shafts only in the UK, the initiative could be seen as a way of providing large-scale crop production for an increasingly global food demand.
Former mine shafts and tunnels could serve as underground farms
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