thinking critically about new innovations in urban agriculture

New innovations in urban ag with indoor farming. Aerofarms uses aeroponics to grow lettuces with no substrate or sunlight…How sustainable is this model when it so easily can become the next large scale commercial enterprise…further investigation should be made before accepting and incorporating these high tech solutions into the main stream. What problems are they solving, what are the limitations, what problems are they reinforcing?

http://aerofarms.com/