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The Oil We Eat (Harpers.org)

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Saved by 16 people (-2 private), first by anonymouse user on 2006-08-17


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on 2006-08-22 by chefranden

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 averag

on 2007-01-03 by gingembre

Tremendous thought piece on the inefficiency of our food production systems and the resulting ecological and societal costs.







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Green eaters, especially vegetarians, advocate eating low on the food chain, a simple matter of energy flow. Eating a carrot gives the diner all that carrot's energy, but feeding carrots to a chicken, then eating the chicken, reduces the energy by a factor of ten. The chicken wastes some energy, stores some as feathers, bones, and other inedibles, and uses most of it just to live long enough to be eaten. As a rough rule of thumb, that factor of ten applies to each level up the food chain, which is why some fish, such as tuna, can be a horror in all of this. Tuna is a secondary predator, meaning it not only doesn't eat plants but eats other fish that themselves eat other fish, adding a zero to the multiplier each notch up, easily a hundred times, more like a thousand times less efficient than eating a plant.

Highlighted by kjc6688

Animal rights aside, vegetarians can lose the edge in the energy argument by eating processed food, with its ten calories of fossil energy for every calorie of food energy produced. The question, then, is: Does eating processed food such as soy burger or soy milk cancel the energy benefits of vegetarianism, which is to say, can I eat my lamb chops in peace? Maybe. If I've done my due diligence, I will have found out that the particular lamb I am eating was both local and grass-fed, two factors that of course greatly reduce the embedded energy in a meal. I know of ranches here in Montana, for instance, where sheep eat native grass under closely controlled circumstances—no farming, no plows, no corn, no nitrogen. Assets have not been stripped. I can't eat the grass directly. This can go on. There are little niches like this in the system. Each person's individual charge is to find such niches.

Highlighted by kjc6688

Chances are, though, any meat eater will come out on the short end of this argument, especially in the United States.

Highlighted by kjc6688

Eighty percent of the grain the United States produces goes to livestock. Seventy-eight percent of all of our beef comes from feed lots, where the cattle eat grain, mostly corn and wheat. So do most of our hogs and chickens.

Highlighted by kjc6688

It takes thirty-five calories of fossil fuel to make a calorie of beef this way; sixty-eight to make one calorie of pork.

Highlighted by kjc6688

Still, these livestock do something we can't. They convert grain's carbohydrates to high-quality protein. All well and good, except that per capita protein production in the United States is about double what an average adult needs per day.

Highlighted by kjc6688

we humans, a single species among millions, consume about 40 percent of Earth’s primary productivity, 40 percent of all there is. This simple number may explain why the current extinction rate is 1,000 times that which existed before human domination of the planet. We 6 billion have simply stolen the food, the rich among us a lot more than others.

Highlighted by draken

Plato wrote of his country’s farmlands: What now remains of the formerly rich land is like the skeleton of a sick man. . . . Formerly, many of the mountains were arable. The plains that were full of rich soil are now marshes. Hills that were once covered with forests and produced abundant pasture now produce only food for bees. Once the land was enriched by yearly rains, which were not lost, as they are now, by flowing from the bare land into the sea. The soil was deep, it absorbed and kept the water in loamy soil, and the water that soaked into the hills fed springs and running streams everywhere. Now the abandoned shrines at spots where formerly there were springs attest that our description of the land is true.

Highlighted by komboloi

Richard Manning is the author of Against the Grain: How Agriculture Has Hijacked Civilization, published by North Point Press.

Highlighted by willhslade