Vertical farming experts estimate that a 30-story farm could feed 50,000 people a 2,000 calorie per day diet for an entire year. Why aren't they more commonplace?
By 2050, the human population on Earth will exceed 9 billion people. At present, 795 million people go to bed hungry each evening. If world hunger is still a pressing issue, how will it ever be solved within the next few decades?
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