Above the pavement-- the farm!

"Above the pavement - the farm! reveals the groundbreaking efforts of architecture firm WORKac and their team of more than 150 collaborators - farmers, politicians, horticulturalists, technicians, soil scientists, engineers, architecture students, and artists - to create a working urban farm, hoisted 30 feet high, using industrial cardboard tubes filled with more than 50 varieties of locally grown fruits and vegetables."--Back cover.