This thesis develops a Pentecostal ecotheology by utilizing key pneumatological themes that emerge from the Pentecostal tradition. It examines and utilizes the salient Pentecostal and Charismatic voices that have stimulated ecotheology in the Pentecostal tradition and situates them within the broader context of Christian ecumenical ecotheologies (Roman Catholic, Orthodox, Protestant, and Ecofeminist). These Pentecostal expressions are placed in dialogue with the particular ecological pneumatologies of Denis Edwards (Roman Catholic), Mark Wallace (Protestant), and Sallie McFague (Ecofeminist). The thesis advances a novel approach to Pentecostal ecotheology through a pneumatology of the Spirit baptized creation, the charismatic creational community, the holistic ecological Spirit, and the eschatological Spirit of ecological mission. Significantly, this thesis is the first substantive contribution to a Pentecostal pneumatological theology of creation with a particular focus on the Pentecostal community and its significance for the broader ecumenical community. Furthermore, it offers a fresh theological approach to imagining and sustaining earth-friendly practice in the twenty-first century Pentecostal church.