If the geographic region of focus is the United States, then the book is mandatory. The impressive amount of data covered in its pages, and the cohesive narrative that contextualizes and analyzes this data, cannot be captured in a 1,600-word book review. Scholars owe Stoll a debt of gratitude for the 30 years of dedication to crafting this thorough treatment of the impact religion has had on environmentalism in the US. This gratitude should begin with the assignment of this book in graduate seminars devoted to interactions between religion and nature, where it can provide a shining example of scholarship toward which future leaders of the field should aspire.