In reaction to concerns about health, climate change and the global economy, food activists of all ages and backgrounds are trying to change the way people eat. Some, like Maring, are putting farmers markets in unlikely places.

If one were to wander off the main path in North Beach-the main “path” being the long stretch of Columbus Street-he or she would find him or herself faced with dauntingly steep hills, quirky boutiques and a few delicious restaurants that might otherwise go unnoticed by tourists or unadventurous locals. Among these restaurants is Bocce [...]