The great virtue of a diversified food economy, like a diverse pasture or farm, is its ability to withstand any shock. The important thing is that there be multiple food chains, so that when any one of them fails—when the oil runs out, when mad cow or other food-borne diseases become epidemic, when the pesticides no longer work, when drought strikes and plagues come and soils blow away—we’ll still have a way to feed ourselves. It is because some of those failures are already in view that the salesroom at Polyface Farm is buzzing with activity this afternoon, and why farmer’s markets in towns
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