America's midwest is one of the great agricultural zones of the world. The wheat, corn and soybean fields feed millions around the world. And to help meet demand, farmers are trying a novel approach - they're growing their crops indoors. Al Jazeera's John Hend
US city adopts eco-friendly 'vertical farming'
America's midwest is one of the great agricultural zones of the world. The wheat, corn and soybean fields feed millions around the world. And to help meet demand, farmers are trying a novel approach - they're growing their crops indoors. Al Jazeera's John Hend
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