Two Agricultures, Not One

Talking about the future after peak oil is a challenging thing. One of the things that makes it most challenging is the extent to which so many people seem unable to imagine any way of doing things that isn't business as usual in some lightly modified form. Last week's post made a passing reference to this odd blinkering of our collective imagination, in the context of current worries in the peak oil blogosphere about "peak phosphorus."

It's true, of course, that the rapid depletion of the wo...