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the subsidies to the midwest are ensuring the lifestyle of (sub-)urban people as well. Not if it costs more to produce food in rural areas than to produce the
by gravitycop 18y ago
the subsidies to the midwest are ensuring the lifestyle of (sub-)urban people as well.
Not if it costs more to produce food in rural areas than to produce the same food in urban areas.
telling Americans that they're not going to be able to eat meat at every meal is [...] a non-starter.
The statement of HeyLaughingBoy that I was responding to was: "Yeah, we'll just level midtown Manhattan to raise 100 acres of corn."
What I had been referring to in my original comment was the raising of "dairy cows" in urban areas. If one could grow corn in a 100 story building, what would stop one from running an automated "Grain/hay/straw-fed" dairy cow operation, or automated beef or veal-calf operations, in a 100 story building?
- HeyLaughingBoy 18y ago* If one could grow corn in a 100 story building, what would stop one from running an automated "Grain/hay/straw-fed" dairy cow operation, or automated beef or veal-calf operations, in a 100 story building?* 1) The relative costs of land urban vs rural. Around here usable farmland land is a relatively expensive $8.5-10k/acre. What's it cost in Manhattan? SF? Boston? 2) The costs of removing animal waste and supplying animals with food: instead of shipping beef in, you're shipping feed in and manure out. Yeah, I know: just put the manure in a digester and run the operation from the resulting methane gas: digester takes up expensive space too and just reduces, not eliminates the waste. 3) How much corn can you grow in that 100 story building? What's the opportunity cost of using the building to grow corn instead of housing an insurance company? 4) I'd really like to know what the financial company across the road from say, a pig farm (mmmm. big manure lagoons) thinks of the lovely midsummer scent. Don't get me wrong: I'm all for local sourcing of food and reducing energy cost where possible. Hell, when I lived in the city, I dug up most of my back lawn to put in fruit & vegetable gardens because grass carpets are a waste of space. But local sourcing only works in small amounts in urban areas for the simple reason that land is so expensive and while sunlight is free, even very high-efficiency lighting costs money. Like the other poster said, theres a reason (actually, reasonS) why farms are in rural areas and it's not just because "that's the way it's always been done." If anything, increasing "efficiency" of food animal operations is going the wrong way: the eggs I get from my chickens every day taste and look infinitely better than the ones I buy at the supermarket from a 10,000 hen operation.
- gravitycop 18y ago1) What's [land] cost in Manhattan? ~$100-1,000/sqft (from Harlem to Midtown, respectively). (At the $8,500-10,000/acre price-range you cited, farmland is $0.195-$0.23/sqft.) For a 100-story building, that works out to $1-10/sqft of floor space, not accounting for walls and columns. Would you choose to locate food factories on the most expensive land in a given urban area? If so, why? Farmland at $0.20/sqft is 1/5th as expensive as 100-story Harlem floorspace. Since the Harlem floorspace would be 1,000 times as food-productive, the farmland would have a relative cost 200 times that of the Harlem floorspace. 2) instead of shipping beef in, you're shipping feed in Why ship feed in, instead of producing it onsite? 2) you're shipping [...] manure out. Manure can be dehydrated. That makes it less expensive to ship. 3) How much corn can you grow in that 100 story building? A 100-story 1 square mile PhytoFarm facility could feed 25 million people. * The New York metropolitan area's population is only 19 million and covers 6,720 square miles. http://en.wikipedia.org/wiki/New_York_metropolitan_area http://en.wikipedia.org/wiki/New_York_metropolitan_area 3) What's the opportunity cost A 100-story Midtown office building would rent for $8,500/year/sqft land area ($85/sqft floor area). http://www.crainsnewyork.com/apps/pbcs.dll/article?AID=/20090111/SUB/301119997/0/TOC http://www.crainsnewyork.com/apps/pbcs.dll/article?AID=/2009... A 1 square mile (28 million sqft) factory would cost $238 billion/year in opportunity - if it could attract renters. Midtown currently does not have any 1 square mile 100-story buildings, and in fact does not allow them. http://en.wikipedia.org/wiki/Setback_(architecture)#Setbacks_and_urban_planning http://en.wikipedia.org/wiki/Setback_(architecture)#Setbacks... That much office space might not currently exist in the entire New York metro area, not to speak of all of Manhattan. 4) pig farm [...] the lovely midsummer scent. Exhaust air can be filtered. This is standard operation procedure for urban cannabis grow operations, and such grow operations are notoriously smelly. * http://www.juliansimon.com/writings/Ultimate_Resource/TCHAR06.txt http://www.juliansimon.com/writings/Ultimate_Resource/TCHAR0... At the current efficiency of PhytoFarm, the entire present population of the world can be supplied from a square area about 140 miles on a side [...] This represents only about a thousandth as much land as is needed for agriculture at present [...] you can immediately cut the land space by a factor of ten: just build food factories ten stories high [...] You could economize even more and build a hundred stories high [...] PhytyoFarm techniques could feed a hundred times the world's present population - say 500 billion people - with factory buildings a hundred stories high, on one percent of present farmland. 140^2 is ~20,000 square miles to feed 5 billion people. With a 100 story building, that becomes 200 square miles. Scaling down to 1 square mile scales down the number of people fed to 25 million. 1 square mile is 28 million square feet. At land costs of $100-1,000/sqft, that works out to $2.8-28 billion in land costs. Outside of Manhattan, but still in the metro area, land might cost as little as $10/sqft, bringing the land cost down to $140 million. For comparison, a typical supertall skyscraper construction project costs over $1 billion. http://www.google.com/search?q=freedom+tower+billion http://www.google.com/search?q=freedom+tower+billion