Over the past one hundred years, agriculture has mainly been a brute force equation. First we industrialized our farms, next we industrialized our food. We backboned our food production and distribution systems with petroleum products. These days, it takes 10 calories of oil to produce 1 calorie of food. In a world facing energy shortages, this alone makes the process untenable. Irrigation systems have pumped our reservoirs dry. Major aquifers in both China and India are almost gone, resulting in dust bowls far worse than the American Midwest suffered in the 1930s. Toxic herbicides and
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