First the vote: Currently raising zero % of my own food. Maybe this spring I will add a veggie garden,,,or maybe not.
Now my more substantive comments. Having read or skimmed this and the previous post on farmers and farming and the over 200+ comments I feel the need to add a perspective I have on this debate, one which Jason has heard from me personally and I have railed against professionally.
Any discussion by Heinberg and others on transitioning to a low energy system of food production dependent on many more farmers is premature unless the very contentious issue of LAND USE / LAND REFORM is discussed. As some of you know, I am a land use planner with a strong background in this subject area. In many, if not all jurisdictions in the US (as well as a number of other countries) what you do with your land and how it is arranged and configured is governed by a basket of rights commonly called zoning. Currently, most locations that maintain an agricultural designation, restrict the minimum parcel size and the number of units permissible on the property. For large scale ag, this isnt a problem as most commercially profitable operators operate well in excess of the typical minimums. But for those new small scale farmers that many of us envision, there simply are no properties available that are correctly sized and larger ones are unable to be collectively purchased and split down to a more useable size since the designation prohibits this anyway.
At the same time a compromise solution that would preserve parcel size minimums but allow collective ownership and residency--one I floated right here in Jason's backyard--was shot down by the local planning commission in a fairly contentious and well attended hearing by small scale farmers back in April. THis set of proposed allowances (which you can read if you click here: http://www.co.mendocino.ca.us/planningteam/pdf/GPU_070419_SR.pdf and scroll down to Item K on page 12) to encourage small scale farming were modest and entirely voluntary.
Oddly enough (or maybe not) allowances for farmworker housing continue to remain on the books. So while 10 small scale farmers are not able to band together and jointly farm a large holding in an equitable manner, a single farm owner can oversee a 10 subservient resident employees (or "independent contractors" as many farmers have taken to referring to their help as legally).
And speaking of ownership in general, land ownership in the US has gotten increasingly consolidated in rural areas due in no small part to cheap energy which makes farming thousand acre farms an afterthought. Well as cheap and abundant energy dries up but the land ownership patterns remain the same we have another problem that we do have historical references for: what will happen to the "landless" poor. We already know our zoning codes frown on collectivism but approve of (neo)feudalism. We know that landowners historically do not give up land willingly. We also know large mobs of landless poor are hugely destabilizing and have given rise to both the Lord-vassal relationships as well as the forced (often violently) removal of the land owner and redistribution of their holdings.
If we are indeed forced down Jason's curve, how are we going to get all our required farmers onto their lands--and under what ownership structure? It is great to talk about the nuts and bolts of farming but failing to address the legal, political and historical challenges to increasing farming in this country renders this discussion premature in my mind. I know we can sustainably farm small properties and provide a decent respectable standard of living for those farmers. The real question is will we be allowed to?