We have shares in a CSA (community sustained agriculture) which resides on 5 acres a half mile from here, though there are dozens of other local farms offering similar deals. At least during the growing season (May-Oct) we are provided with a large box of produce that meets or exceeds our family's weekly requirements--not the only "solution", but proof that communities can and should be attempting to self-generate a portion of their food stuffs. Incidentally, our CSA has been in biz for twenty years as a women owned, run and operated farm. They don't have a single tractor or other mechanized implements except for a BCS walk-behind rototiller.