hans hassle, the ceo of plantagon, is planting new seeds for the future of urban farming. plantagon, a leader in vertrtical urbaban agricultlturl consnstruct a cucutting-edgege greenhououse in the e swedish cy of linkopoping, southth of ststockholm. . the aim isis to e more e food usingng less space;o deliver fresh produce at lower cost by marketing directly to consumers; and to embody a new business model, one that makes money while doing good. >> hans hassle, plantagon international. it's a new concept. what is it? >> we are trying to be part of finding technical solutions on how we're going to feed the future really huge megacities of the world. we are sure thatat we will have many reasons for growing food large-scale inside our cities, and we want to be part of developing those few solulutions for how to do that. we do believe that we will have 3 different problems to feed people living inside the city. one is the vast geographical sprawl of the cities. 2040, 2050--most scientists agree that 80% of 9 billion people will live inside cities. and already today, we are usi