Randomizer wrote:World’s Largest Rooftop Farm Planned For Brooklyn
The world needs more of this kind of thing. It'll save a lot of fuel on shipping produce everywhere, and the food will be much fresher. Plus if some country decides to put sanctions on you so you have trouble getting food imported (or you otherwise have trouble getting food brought in), you won't starve.
So, I know 100,000 square feet sounds big, but convert to the useful measure for agriculture: acres. It's a bit over 2. (In 1880, a slogan for British land reform was "three acres and a cow"
- the amount of farmland that was ideal for a single citizen.)
It is hydroponic, though, and so they might actually be able to get their million pounds of produce out of two acres (standard methods would produce 100k pounds at most). If they were growing grain, you could feed about 2.5k people with this. Brooklyn's population density is about 57 people per acre, and this is (if devoted to grain) producing enough to feed 1250 people per acre.
They almost definitely will not produce grain with this, because local fruits and vegetables fetch a far higher premium than local grains. But I'm pleased to see this is actually sustainable, even without switching to algae, for population densities way higher than NYC's. (That said, when you grow things hydroponically I believe you fortify the nutrient solution with something, and that may become the limiting factor, rather than the volume it takes up.)