Urban farms are springing up in cities across Europe, but if they keep excluding lower income groups they’ll do little to help shift towards sustainable food system. For urban agriculture to move beyond serving a niche group of people and make a real impact on the global food system, it will have to engage a wider demographic, not just the food elitists. http://www.theguardian.com/sustaina...g-rich-hipsters-food-affordability-inequality