Here's an excerpt from the article by Neal Peirce published in the Seattle Times yesterday.
I discovered the best analysis by Paul Hawken of the Natural Capital Institute, at the Urban Land Institute's World Cities Forum in London last month:
"Food-supply chains are getting longer, more dependent on packaging, refrigeration and energy. Small farmers lose out to distant agribusiness and sell their land for suburban development. More agricultural inputs are used in agribusiness than on smaller farms, creating runoffs that destroy rivers, waterways, fisheries and rural jobs."
What I find is that most people are simply unaware of these food supply issues.