Big Muddy Farms, an urban farm in northern Omaha, Neb., is seen among residential homes last October. Urban farms have become a celebrated trend, yet earning a living at it is tough, a new survey finds. Nati Harnik/AP hide caption toggle caption Nati Harnik/AP The Salt Urban Farms Fuel Idealism. Profits? Not So Much March 7, 2016 Raising crops in the city has become trendy, yet earning a living at it is tough, a survey finds. But many urban farmers are in it for other reasons, like addressing hunger and building community.