The Cleveland Botanical Gardens' Green Corp. Program works to educate and employ High School youth in agricultural production, processing, and sales. On the programs main site in urban Cleveland Tunnel Vision Hoops installed two tunnels side by side, each 20' x 52' farm tunnels. These tunnels are at the core of this programs ability to extend the season and become more financially sustainable. One of the tunnels has been upgraded with Tunnel Vision's Greenhouse Spacer Blocks and an additional layer of poly covering in order to add a layer of dead air space between the outside elements and the plants within.