Urbanization has significantly decreased the amount of land that is available for farming. The great expanses of winding roads, towering department stores, and crammed apartment complexes have spread out so far that there is no longer the same amount of space left over for planting crops. Because of this, most of the people who live in the city don’t have much access to fresh fruits and vegetables outside of a grocery store. So those who can’t afford to regularly shop often just get by with whatever meagre provisions that they can scrape together. But there is a new gardening movement that offers a way to change all this. It is called “urban rooftop gardening.”