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Is High-Yield Agriculture Sustainable?

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Is High-Yield Agriculture Sustainable?

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10

The first and foremost issue of agricultural sustainability is preventing the plow-down of the world’s remaining wildlands for low-yield food production. Agriculture dominates the world’s land use. Cities take only 1.4 percent of the earth’s land area, and will occupy less than 4 percent in 2030.4 Agriculture (with pastures) takes about one-third of the land area, and its high yields have kept another third for forests-on the land left over we have “enough” food. We must remember that land is the scarcest natural resource of all, and high-yield farming is how we conserve it. The world’s population today is 80 percent bigger than in 1960. The environmental wonder of the 20th Century is that today’s farmers are feeding better diets to almost twice as many people from virtually the same cropland base. We used 1,394 million hectares of land for crops in 1960-and only 1,441 million hectares in 1992 to get twice the grain and oilseeds.5-6 In addition, the average Third World citizen is getti

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