“Food flats and vertical farming as an alternative to our inefficient food system: in order to do vertical farming in a sustainable way, we must integrate the food production into the urban infrastructure for a significant part. At present, our food system is inefficiently organized: our food travels many kilometers, uses a lot of water, is wasted and pollutes the environment. Nevertheless, the 7 billion inhabitants, often living in large cities, need to be fed. Food flats and vertical farming in urban agriculture are important alternatives to our current inefficient food system.”