By Kat Harrold
Photo By ~ Kat Harrold
Rooftop farming has the allure of self-reliance in a world of food uncertainties.
It is well known that urban agriculture on rooftops has recreational and educational value. However when it comes to economy and ecology these little pieces of intensive used land in polluted cities are more than questionable.
Depending on crop selection rooftop farms can provide habitat for several pollinators. At the same time they also provide food and shelter for insects, birds, and small mammals that might not be wanted. On ground remote locations it is very difficult and labor intensive creating a natural balance among wanted and unwanted organisms. Finally it depends on your goal, the time you like to invest, how much additional weight your roof can carry and last but not least your experience and knowledge in farming on impervious areas. Potentially urban agriculture on roofs or rooftop farms can be a diverse environment or – most likely - a monoculture stage for chemical warfare between man and nature.