an indoor farm use 70 percent less water than an outdoor one, it reuses it. Over and over. “If you farm tomatoes,” he says, “the only water you lose is the water that leaves inside the tomatoes.” Same with the fertilizer (which in most of these indoor farms is organic). Since pests can’t get in, he points out, there is no need for pesticides and no pesticide residues to worry about. Increasingly, heating and lighting are provided by on-site anaerobic digestion of all those plant residues. And when it comes to cooling, the plants do a better job than any air-conditioning unit. In one huge indoor farm in Tucson, Arizona, water evaporating off leaf surfaces keeps the temperature below 85 degrees year-round. foodtank/news/2014/03/skyscraper-farms-will-take-urban-agriculture-to-new-heights
Posted on: Thu, 20 Mar 2014 13:33:50 +0000
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