In the very near future most of the world's population will be living in cities. Feeding that huge mass of humanity is going to be a challenge. With the availability of suitable farmland declining rapidly, some are suggesting that we grow our food in urban settings. These aren't merely a city rooftop garden; Vertical Farms are sky-scraping industrial capacity breadbaskets able to recycle waste and generate its own energy.
I think it's a really cool idea. It's a big plan to solve a big problem. We may see something like this in cities within the next few decades. Look out for Japan. They have very little space to spare in their immense urban centers. The investment involved in building a far like this makes to become a reality only through some kind of public works project.
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