Aquaponics: A Wonderful Innovation

On the surface, this looks great. Modern agriculture methods are often wasteful, and this creates an alternative. We need to get away from the factory farming of animals such as cattle, hogs, and poultry. We also need to find methods of farming plants that don't damage the land the way many current methods do.
This idea utilizes unwanted urban spaces such as old warehouses. It could be a cost-effective way of bringing more food to more people.
~Spectra~