Writing at the interface of religion and nature theory, US religious history, and environmental ethics, Todd LeVasseur presents the case for the emergence of a nascent "religious agrarianism" within certain subsets of Judaism and Christianity in the United States. Adherents of this movement, who share an environmental concern about the modern industrial food economy and a religiously grounded commitment to the values of locality, health, and justice, are creating new models for sustainable agrarian lifeways and practices. LeVasseur explores this greening of US religion through an extensive engagement with the scholarly literature on lived religion, network theory, and grounded theory, as well as through ethnographic case studies of two intentional communities at the vanguard of this movement: Koinonia Farm, an ecumenical Christian lay monastic community, and Hazon, a progressive Jewish environmental group.