Yahoo: With less available land and more people to feed each year, we have a real problem on our hands, whether or not we all choose to acknowledge it. However, some people are already considering ways to fix it, and one of the most viable solutions is to build massive vertical farms that require no soil, use water efficiently, and replace the sun with LED lighting to grow fresh produce.
The biggest vertical farm in the world is currently under construction in New Jersey, and it will produce some 2 million...