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We've talked a little about vertical farming here on Nextworld, but you've got to see this. Singapore is setting the stage for a global urban initiative towards locally grown food and sustainable farming techniques. The owner of Skygreen says his farming systems can function on only three dollars a month worth of electricity! Not only this, but they use less chemicals, are fresher when they get to the market, and use a fraction of the acreage to produce. Take a closer look here.