Source: Academia Creation as Sacrament: Reflections on Ecology and Spirituality  by John Chryssavgis (London: T&T Clark, 2018), xi + 220 pp.      When speaking once in a discussion on climate change about the sacramentality of creation, a priest of the Greek Orthodox Archdiocese of America responded to me, “I know there are seven sacraments, but I’ve never heard of creation as a sacrament.” This is exactly the kind of attitude that has itself contributed to an exploitative relationship to the cosmos and which John Chryssavgis hopes to correct with his aptly-titled book, Creation as Sacrament: Reflections on Ecology and Spirituality.…