A Canadian grocery store is growing organic veggies on its rooftop

Required by the Montreal borough of Saint Laurent to install a green roof to offset carbon emissions, IGA, a grocery store started growing 30+ kinds of organic veggies on its roof to sell it in the produce section downstairs. The project is not only profitable but truly 'local' in nature. The idea saves the nutritional value of the produce lost in transportation, improved the water usage by utilizing the water from the store's dehumidification system...
Read more: http://posinewz.com/stories/A-Canadian-grocery-store-is-growing-organic-veggies-on-its-rooftop/69/?source=Snapzu