Here is the videomakers' story of the production; a critique of the strategy by Vancouver's City Food magazine; and of Unilever's international marketing campaign by Corpobligation. Is it greenwash? Make up your own mind.
See also Wikipedia on local food, food security, permaculture, poverty and fair trade, and the Toronto Food Policy Council (TFPC). You will find in-depth analysis of urban gardening, CSA, Canadian food security, and international implications, in the TFPC's Foodforethought.net by activists Wayne Roberts and Amber McNair, James Kuhns of the American Community Gardening Association and others. And in Roberts' personal blog.