Fred First pointed a link at this article. Thanks Fred. The entire article is worth the read but I found the last paragraph very important...
Locally grown is a denomination whose meaning is incorruptible. Sparing the transportation fuel, packaging, and unhealthy additives is a compelling part of the story. But the plot goes beyond that. Local food is a handshake deal in a community gathering place. It involves farmers with first names, who show up at the market week after week. It involves consumers who remember that to be human is to belong to a food chain, wherever and whenever we find ourselves alive. It means remembering the truest of all truths: we are what we eat. Stepping slowly backward out of a fuel-driven industry of highly transported foods will alter more than a person’s grocery list. Such small, stepwise changes in personal habits aren’t trivial. Ultimately, they will add up to the story of who we were on this planet: what it took to keep us alive, what we left behind.
Source: Stalking the Vegetannual | by Barbara Kingsolver | Orion Magazine March-April 2007