In this photo taken on Tuesday, Sept. 5, 2017, Joris Voeten inspects the rooftop garden he helped develop in Amsterdam. Voeten, an urban engineer in Amsterdam has unveiled a new kind of rooftop garden that he says can store more water than existing roofs and feed it to plants growing on shallow beds of soil.
In this photo taken on Tuesday, Sept. 5, 2017, Joris Voeten inspects the rooftop garden he helped develop in Amsterdam. Voeten, an urban engineer in Amsterdam has unveiled a new kind of rooftop garden that he says can store more water than existing roofs and feed it to plants growing on shallow beds of soil. Michael C Corder AP Photo
In this photo taken on Tuesday, Sept. 5, 2017, Joris Voeten inspects the rooftop garden he helped develop in Amsterdam. Voeten, an urban engineer in Amsterdam has unveiled a new kind of rooftop garden that he says can store more water than existing roofs and feed it to plants growing on shallow beds of soil. Michael C Corder AP Photo

Dutch engineer aims high with latest green roof design

September 10, 2017 6:23 AM