New York: Soon food from the farms in the sky

What if "eating local" in New York meant getting your fresh produce from five blocks away? And what if skyscrapers grew off the grid, as verdant, self-sustaining towers where city slickers cultivated their own food?

Dr. Dickson Despommier, a professor of public health at Columbia University, hopes to make these zucchini-in-the-sky visions a reality.
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