[image credit: WNYC]
Farmland is scarce in dense urban areas
It's a paradox of urban life: as the population goes up and demand for food increases, the availability of fresh food to feed the masses decreases. Food prices in urban areas are hence higher than in rural areas.
Solution: Grow food on the rooftops
While some New Yorkers are starting organic farms upstate to supply restaurants downtown, others are turning to vacant rooftops in the industrial areas of the city. There are definitely some additional hassles and considerations involved in urban farming, but the following article highlights how it is being done.