BusinessFounders Valley: Indonesia - future foodTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusinessJoanna Gottschalk01/23/2018January 23, 2018Indonesia's urban population is exploding. As farmers leave the land, there are worries over the country's food security. German entrepreneur Fridtjof Detzner meets a start-up founder who has developed a vertical farming system for city dwellers.https://p.dw.com/p/2rLK6Advertisement