Where does food come from?

http://www.nytimes.com/2008/10/12/magazine/12policy-t.html?pagewanted=1&_r=1

As the class grows food in the growlab and green house - the tomatoes look great! - with the thought to grow a salad by Thanksgiving, it is worth reflecting on the time it takes to grow the food we eat and how it is produced. This article by Michael Pollan provides plenty of "food for thought" on this issue.