This is the latest installment of Harvest Public Media’s Field Notes, in which we talk about important issues related to food production.
Retailers and restaurants like Whole Foods, Chipotle, Safeway, McDonald's and Wal-Mart are all providing information to consumers about how sustainably some of their foods were produced. But as I found doing this story, it's hard to know just what "sustainability" means and how to judge whether food was produced in a "sustainable" way.