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What do you guys think of vertical farming?
(slrpnk.net)
Vertical farming, the best solution to support an ever growing population or just a scam?
IMHO it has a lot of potential but not being able to grow grains really is something that should be tackled sooner rather than later. But I could see this being used by self sustaining communities to provide lots of food while using very little space. And it's technically more environmentally friendly than just using vast stretches of land to produce the same amount of food.
@keepthepace @Doctor_olo Do remember that in a city shadows (shade) can be valuable.
Even away from cities, there are conventionally farmed crops that would appreciate the shade that a bunch of photovoltaic panels could offer: Put them higher up and provide sufficient access below.