I'm sorry, not mines but factories.
I'm sorry, not mines but factories.
Idea: Bring back coal mines and put skyscraper greenhouses next to them that have fans that softly suck in the air coming out and puts it through filters so the plants get fresh air and I wish I could word that better but if they made it a big thing that would not only bring jobs but clean up the air so even rocket fuel would be safe.
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