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plus all the available species of domestic plants and animals, plus the natural systems and cycles that surround farming and support it, plus the knowledge, taste, judgment, kitchen skills, etc. of all the people who buy food. A proper solution to an agricultural problem must preserve and promote the good health of this “unit.” Nothing less will do.
    The second reason for the failure of industrial agriculture is its wastefulness. In natural or biological systems, waste does not occur. And it is easy to produce examples of nonindustrial human cultures in which waste was or is virtually unknown. All that is sloughed off in the living arc of a natural cycle remains within the cycle; it becomes fertility, the power of life to continue. In nature death and decay are as necessary—are, one may almost say, as lively—as life; and so nothing is wasted. There is really no such thing, then, as natural production; in nature, there is only reproduction.

    But waste—so far, at least—has always been intrinsic to industrial production. There have always been unusable “by-products.” Because industrial cycles are never complete—because there is no return —there are two characteristic results of industrial enterprise: exhaustion and contamination. The energy industry, for instance, is not a cycle, but only a short arc between an empty hole and poisoned air. And farming, which is inherently cyclic, capable of regenerating and reproducing itself indefinitely, becomes similarly destructive and self-exhausting when transformed into an industry. Agricultural pollution is a serious and growing problem. And industrial agriculture is forced by its very character to treat the soil itself as a “raw material,” which it proceeds to “use up.” It has been estimated, for instance, that at the present rate of cropland erosion Iowa’s soil will be exhausted by the year 2050. I have seen no attempt to calculate the human cost of such farming—by attrition, displacement, social disruption, etc.—I assume because it is incalculable.
    This failure of industrial agriculture is not more obvious, or more noticed, because many of its worst social and economic consequences have collected in the cities, and are erroneously called “urban problems.” Also, because the farm population is now so small, most people know nothing of farming, and cannot recognize agricultural problems when they see them.
    But if industrial agriculture is a failure, then how does it continue to produce such an enormous volume of food? One reason is that most countries where industrial agriculture is practiced have soils that were originally good, possessing great natural reserves of fertility. (Industrial agriculture is much more quickly destructive in places where the fertility reserves of the soil are not great—as in the Amazon basin.) Another reason is that, as natural fertility has declined, we have so far been able to subsidize food production by large applications of chemical fertilizer. These have effectively disguised the loss of natural fertility, but it is
important to emphasize that they are a disguise. They delay some of the consequences of failure, but cannot prevent them. Chemical fertilizers are required in vast amounts, they are increasingly expensive, and most of them come from sources that are not renewable. Industrial agriculture is now absolutely dependent on them, and this dependence is one of its fundamental weaknesses.
    Another weakness of industrial agriculture is its absolute dependence on an enormous and intricate—hence fragile—economic and industrial organization. Industrial food production can be gravely impaired or stopped by any number of causes, none of which need be agricultural: a trucker’s strike, an oil shortage, a credit shortage, a manufacturing “error” such as the PBB catastrophe in Michigan.
    A third weakness is the absolute dependence of most of the population on industrial agriculture—and the lack of any