Skyscrapers Full of Lettuce Promise an Eco-Friendly Alternative to Outdoor Farming. There’s Just One Problem.
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Jul 22, 2018, 6:00 am291 ptsFor growing food, the sun is yesterday’s technology. Soil? As quaint as an iPod. Such are the promises of vertical farms—indoor towers stacked high with crops. Waterborne nutrients feed the plants, and led lights drive their photosynthesis. The idea emerged back in 2000, when Columbia…
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