This book presents an ethnographic study of environmental Christian networks involved in the climate and transition towns movements. Maria Nita examines the ways in which green Christians engage with their communities and networks, as well as other activist networks in the broader green movement. The book interrogates key categories in the field of religious studies which intersect activist concerns, including spirituality, community, and ritual. In this sociological exploration the author uses existing research tools, such as discourse analysis, and proposes new theoretical models for the investigation of network expansion, religious identity, and relationality through ritual. Nita examines the mechanisms underlying the greening of religion and thus offers an in-depth analysis of prayers, rituals, and religious practices, such as praying through painting, fasting for the planet, and sharing the green Eucharist in or with nature.