The Sonoma Biochar Initiative, The Sonoma Ecology Center, Whole Foods Market Sonoma, and Native American educator Cuauhtemoc Villa are collaborating on a series of four free classes on indigenous farming techniques. Held at the Sonoma Garden Park on successive Thursday mornings from 9 A.M. to 10 A.M. (July 16, July 23, July 30, and Aug. 6), these classes will cover a range of topics including the preparation and use of Bokashi (a fermented, anaerobic composting technique), biochar preparation and use, Hugelkultur mounds, and other traditional farming techniques used by various indigenous cultures. Go here for more information and to register: