I often wonder how Oregon and Washington will handle a thirty million people migration influx when Phx, Tucson, LA, San Diego, and hundreds of smaller cities start heading north.
 
Now that's depressing.  I'm already contemplating my move back to Oregon from one of the other nonsustainable monstrosities, i.e. Atlanta.
Hello Liz,

I am a hardcore Doomer who believes in the fast-crash, but I hope I am wrong, and we can get a slow decline.  What worries me most about Peakoil is the effect it will have upon our food and water.  People can quickly scale up to pedaling a bicycle twenty or thirty miles a day if they really have go that distance to support their families, but the real future trick will be having sufficient food and water.  I don't think there is any solution.

If I was a farmer who knew about Peakoil and I had no mortgage on my land-- I would be drastically changing my methods and crops so that I could be self-sustainable as possible.  For example, if I owned 5,000 acres that would be normally a corn crop, I probably would immediately change 2000 acres over to be woodland and natural habitat so that I would have a future source of firewood, nut trees, berry plants, and wildlife to hunt.  Probably another 2000 acres so I could pasture just a few oxen, horses, dairy cattle, pigs, sheep, etc, and a large family garden.  Then maybe the last 1000 acres to growing commercial corn or soybeans, but shrinking this amount every year, so that I could grow cotton exclusively for myself.

Now if every farmer starts doing this, pretty damn quickly you have major food shortages in the cities and towns.  Why would the farmers do this?  As oil prices escalate upwards, the farmer won't be able to afford the energy to grow the usual 5,000 acres anyhow, so he might just as well put his efforts into his own survival using his labor and permiculture techniques.  Too bad for the rest of us.

Bob Shaw in Phx,AZ  Are Humans Smarter than Yeast?

I have a feeling that any farmer who tried to go down that route would probably get the Robert Mugabe treatment sooner or later. Even if the government didn't chose that option, how could a farmer defend 5000 acres from desperate people anyway?
Your probably correct in that the farmer would not be able to defend his land-- ERoVI > ERoEI is going to be a huge problem [ERoVI = Energy Returned on Violence Invested].  The old story of rape, pillage, and plunder is a successful short-term strategy, but is disasterous for the long term.  No disputing that it reduces headcount though.

That is the main reason why I think we will have a fast crash-- to minimize opportunities for ERoVI.  My feeling is at crunch time: most urban and suburban dwellers will be forced to die n place, instead of being allowed to roam the countryside killing the farmers, then looting for whatever food they can find.

Bob Shaw in Phx,AZ  Are Humans Smarter than Yeast?

Actually, that's about the only good thing I could say about martial law. They'll close the Eisenhower Tunnel to protect the rich in Vail, Eagle and Aspen. (And our little farm, by being in the right place.)

Our ranch is only 120 acres, irrigated. We raise high-value registered Angus, so we can survive on sirloins if we have to.

We're already going permaculture, planting a woodlot, adding PV panels for a kind of parallel future if it comes to it. We've also formed a quiet coalition with other farmers and neighbors who understand what's coming. We have a barter system in place.

We have rich, volcanic soils and gravity-fed water systems. I do worry that the irrigation water might be requisitioned to try to keep the sunbelt sprawl afloat, but we also have springs and creeks here.

I don't know if anyone beside the oligarchs will really get through a die-off, but we're organized and we're going to try.

Besides PV, you have "gravity feed streams".  They make microhydro as small as 100 watts !

What volumes of water and what falls (vertical distance) might be harnessed by putting into a pipe to make some hydropower ?

Make $ today, and keep LED lights and some motors going "later".