Aurthur Baustein Arthur Blaustein teaches community development, social history, and urban policy at the University of California, Berkeley Arthur Blaustein teaches community development, social history, and urban policy at the University of California, Berkeley. Today he will discuss the importance of volunteering and how to think globally, while acting locally. Judith Duerk Sisters of the Earth, a network of women who bring together other women of various cultural backgrounds Author, psychotherapist, and music therapist Judith Duerk is joined by Julia Chavez, Shelly Gottfred, and Marie Deary. Together they will discuss Sisters of the Earth, a network of women who bring together other women of various cultural backgrounds in order to recognize and reconcile their differences.