One of those timeless articles
Posted: Wed Jun 29, 2005 3:42 am
http://www.harpers.org/TheOilWeEat.html
by Richard Manning
some excerpts:
by Richard Manning
some excerpts:
If you follow the energy, eventually you will end up in a field somewhere. Humans engage in a dizzying array of artifice and industry. Nonetheless, more than two thirds of humanity’s cut of primary productivity results from agriculture, two thirds of which in turn consists of three plants: rice, wheat, and corn. In the 10,000 years since humans domesticated these grains, their status has remained undiminished, most likely because they are able to store solar energy in uniquely dense, transportable bundles of carbohydrates. They are to the plant world what a barrel of refined oil is to the hydrocarbon world. Indeed, aside from hydrocarbons they are the most concentrated form of true wealth—sun energy—to be found on the planet.
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Domestication was also a radical change in the distribution of wealth within the plant world. Plants can spend their solar income in several ways. The dominant and prudent strategy is to allocate most of it to building roots, stem, bark—a conservative portfolio of investments that allows the plant to better gather energy and survive the downturn years. Further, by living in diverse stands (a given chunk of native prairie contains maybe 200 species of plants), these perennials provide services for one another, such as retaining water, protecting one another from wind, and fixing free nitrogen from the air to use as fertilizer. Diversity allows a system to “sponsor its own fertility,” to use visionary agronomist Wes Jackson’s phrase. This is the plant world’s norm.
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Corn, rice, and wheat are especially adapted to catastrophe. It is their niche. In the natural scheme of things, a catastrophe would create a blank slate, bare soil, that was good for them. Then, under normal circumstances, succession would quickly close that niche. The annuals would colonize. Their roots would stabilize the soil, accumulate organic matter, provide cover. Eventually the catastrophic niche would close. Farming is the process of ripping that niche open again and again. It is an annual artificial catastrophe, and it requires the equivalent of three or four tons of TNT per acre for a modern American farm. Iowa’s fields require the energy of 4,000 Nagasaki bombs every year.
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When we say the soil is rich, it is not a metaphor. It is as rich in energy as an oil well. A prairie converts that energy to flowers and roots and stems, which in turn pass back into the ground as dead organic matter. The layers of topsoil build up into a rich repository of energy, a bank. A farm field appropriates that energy, puts it into seeds we can eat. Much of the energy moves from the earth to the rings of fat around our necks and waists. And much of the energy is simply wasted, a trail of dollars billowing from the burglar’s satchel.
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Six thousand years before sodbusters broke up Iowa, their Caucasian blood ancestors broke up the Hungarian plain, an area just northwest of the Caucasus Mountains. Archaeologists call this tribe the LBK, short for linearbandkeramik, the German word that describes the distinctive pottery remnants that mark their occupation of Europe. Anthropologists call them the wheat-beef people, a name that better connects those ancients along the Danube to my fellow Montanans on the Upper Missouri River. These proto-Europeans had a full set of domesticated plants and animals, but wheat and beef dominated. All the domesticates came from an area along what is now the Iraq-Syria-Turkey border at the edges of the Zagros Mountains. This is the center of domestication for the Western world’s main crops and livestock, ground zero of catastrophic agriculture.
Two other types of catastrophic agriculture evolved at roughly the same time, one centered on rice in what is now China and India and one centered on corn and potatoes in Central and South America. Rice, though, is tropical and its expansion depends on water, so it developed only in floodplains, estuaries, and swamps. Corn agriculture was every bit as voracious as wheat; the Aztecs could be as brutal and imperialistic as Romans or Brits, but the corn cultures collapsed with the onslaught of Spanish conquest. Corn itself simply joined the wheat-beef people’s coalition. Wheat was the empire builder; its bare botanical facts dictated the motion and violence that we know as imperialism.
The wheat-beef people swept across the western European plains in less than 300 years, a conquest some archaeologists refer to as a “blitzkrieg.” A different race of humans, the Cro-Magnons—hunter-gatherers, not farmers—lived on those plains at the time. Their cave art at places such as Lascaux testifies to their sophistication and profound connection to wildlife. They probably did most of their hunting and gathering in uplands and river bottoms, places the wheat farmers didn’t need, suggesting the possibility of coexistence. That’s not what happened, however. Both genetic and linguistic evidence say that the farmers killed the hunters. The Basque people are probably the lone remnant descendants of Cro-Magnons, the only trace.
