December 13, 2011
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4:44Now PlayingPopulation growth has led to increased demand for vegetables and fruit and ever rising prices. Additional cropland is needed to make sure everyone on the planet can be fed.One solution could be provided by vertical farming, where fruit and vegetables are grown in high-rise greenhouses. Microbiologist Dickson Despommier works with architects and environmental scientists to draw up plans for growing crops effectively in multi-storey structures in cities.
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