Nature and EnvironmentVertical farming in GermanyTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentChristina Röder05/04/2018May 4, 2018A startup in Hamburg has created a vertical farm — a warehouse of stacked beds grown under artificial light — and already delivers lettuce and herbs to ten local restaurants. But what are the real environmental costs?https://p.dw.com/p/2xBxtAdvertisement