Human population is increasing from 7.6 billion today to an estimated 9.5–10 billion by 2050.1 How can billions more people, with increasing demands for protein and other food sources, be adequately fed without destroying the environment? Utilizing more land for agricultural purposes is not a solution, given that much of the arable land on the planet is already being used for food, fiber, chemical, or fuel production. One answer to this complex challenge will lie in the ability to produce more food within the current footprint in sustainable and affordable ways.
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