Dickson Despommier, a professor at Columbia University, created the vertical farm concept with 82 graduate students. He says that the skyscrapers could protect a city's food supply from floods and droughts, and from pathogens that attack crops
P.S. Farm? PS1's Public Farm 1 is now open for picking
Project Public Farm 1 was constructed in 2008 (NY) as an educational and social space that functioned as an urban farm. Edible vegetables, fruits, salads were located in raised planter columns which grave rise to an eye catching structure.
Subsequent ideas for building up and green have further integrated greenery into the very function of buildings, from pragmatic passive cooling and filtering systems to organic forms that reflect the function of these hybrid structures.