The program on Tuesday was presented by Vertical Harvest. Vertical Harvest is a high-rise greenhouse concept, with the produce grown hydroponically. They have proposed to use the narrow slice of land on the south side of the Millward Street parking garage for the structure. Vertical greenhouse technology is extremely efficient with respect to producing high quality vegetables, using little energy or fertilizer, and producing outstanding goods. Production can go year-round, and the produce is sold locally. Go to verticalharvest.org for more information.