Urban agriculture has been real for decades, starting with the industrialization of Western Europe in the 20th century. Urban agriculture has been also well practiced in poor economies such as Cuba, where it serves as an important way of self-reliance. Today, with conventional agriculture “Big Ag” being at a cross-road in terms of its ecological impact on the environment and the increased food demand of a population growing to 9bn people by 2050, urban agriculture may very well be one key of a solution for the 21st century.