How to feed the cities of the future
At MIT Media Lab in Cambridge, Massachusetts, Caleb Harper’s CityFARM demonstrates the future of food production. He grows plants through aeroponics, a system that produces plants without soil. Plants are hooked up to servers and misting mechanisms. LEDs fill in for the sun and ladybugs (purchased on Amazon) occasionally make an appearance. Plants are periodically sprayed with a nutrient-rich mist that provides optimal pH balance. Light and temperatures are closely monitored. The environment nurtures plants that have twice the nutrient density of their conventional counterparts. Lettuce, bok choy, and tomatoes have already fed the scientists in the lab.