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reply to post by tothetenthpower
It's a great concept. If all you need to survive is lettuce.
But seriously, on an individual basis, can everyone provide all of their nutritional needs by this method? The image you posted shows a greenhouse, not a "green tower" that you can set up on the balcony of your apartment. (No, I don't live in an apartment but a lot of people do).
Can a system like this provide the megatons of food required to feed millions?
edit on 2/1/2014 by Phage because: (no reason given)
40 tons of food a year from those 3 acres.
WA: You could quantify it in a number of different ways. We grow enough food there to feed about 10,000 people in a very intense and integrated food system.
He grows food in ways that few have seen before -- and he grows it sustainably. Allen’s 3-acre farm sits in the poorest part of Milwaukee and now feeds 10,000 people a year.
Start adding the logistics of coordinating marketing and distribution to the costs and what where do you get?
This works at the community level.
So in my community of just under 300K, one facility would be enough, because the city is generally small and travel isn't any kind of problem for most people.
I understand that. It is the required area, power, and water requirements that I wonder about. Maybe large scale, small scale farming can work. I'm not convinced. I would like to be convinced because it would help to resolve a lot of problems which are a direct result of a growing population.
This is what I'm saying Phage, it's not ONE person or one facility, it would need to be dozens or hundreds of them spread out all over these cities.