Early this century, a new form of flaming chalice appeared on the newsletters of Unitarian Universalists. A rippled bowl holds a single-lobed leaf, stem down. Bowl and leaf are always green, and yet the symbol is recognized as a flaming chalice. This new design is the imprint of the Green Sanctuary movement, which, over the past twenty years, has blended religious celebration with environmental education and community action. Between 2002 and 2010, more than 10 percent of the Unitarian Universalist Association's (UUA's) member congregations have completed the program and achieved accreditation as Green Sanctuaries. This program represents the degree to which science, theology, and religious practice are entwined for Unitarian Universalists.