This book builds bridges between theology and ecology. It challenges theology to re-imagine who we are, who the Spirit is, who Christ is, where creation is going, and what is the role of liturgy in society—all in the glare of the climate crisis. Up to now climate change was left to scientists, politicians, and activists. It is now time for religion to enter the debate. Climate change is not just one more problem to be addressed; it is the challenge facing humanity in the 21st century. This thought-provoking text will be of interest to activists, policymakers, educators, priests, and theologians.