I recently met with Season to Taste Catering Chef Robert Harris, who told me about Chicago-based Green caterer Greg Christian. He has published a number of tools and started several initiatives to promote eating locally and sustainably through his website. Among them: a map (above) of the farms he uses to source food in the Chicago area; a Corporate Social Responsibility plan (available for download here) and an online reality-style television show, the Green Catering Challenge (current episode below):