The recent release of Pope Francis’s much-discussed encyclical on the environment, Laudato Si’: On Care for Our Common Home, has reinforced environmental issues as also moral and spiritual issues. This anthology, twenty years ahead of the encyclical but very much in line with its agenda, offers essays by fifteen philosophers, theologians, and environmentalists who argue for a response to ecology that recognizes the tools of science but includes a more spiritual approach-one with a more humanistic, holistic view based on inherent reverence toward the natural world. Writers whose orientations range from Buddhism to evangelical Christianity to Catholicism to Native American beliefs explore ways to achieve this paradigm shift and suggest that the environment is not only a spiritual issue, but the spiritual issue of our time.