07-04-2008, 06:27 AM
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#68 (permalink)
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Insane
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The oil we eat
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Iowa is almost all fields now. Little prairie remains, and if you can find what Iowans call a “postage stamp” remnant of some, it most likely will abut a cornfield. This allows an observation. Walk from the prairie to the field, and you probably will step down about six feet, as if the land had been stolen from beneath you. Settlers' accounts of the prairie conquest mention a sound, a series of pops, like pistol shots, the sound of stout grass roots breaking before a moldboard plow. A robbery was in progress.
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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Today we do the same, only now when the vault is empty we fill it again with new energy in the form of oil-rich fertilizers. Oil is annual primary productivity stored as hydrocarbons, a trust fund of sorts, built up over many thousands of years. On average, it takes 5.5 gallons of fossil energy to restore a year's worth of lost fertility to an acre of eroded land
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One day there will be so many houses, that people will be bored and will go live in tents. "Why are you living in tents ? Are there not enough houses ?" "Yes there are, but we play this Economy game"
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