Power With: Indigenous Knowledges, Environmental Practice, and the Strength of Collaboration calls for a paradigm shift in environmental science and education. This groundbreaking collection advocates for ethical and effective collaborations between Indigenous Peoples and communities and environmental practitioners working at the intersection of Indigenous ways of knowing, being, and doing, and Eurocentric environmental sciences. Through case studies grounded in community-based research and dialogue from a gathering of contributing authors, this volume asks urgent questions: How does the status quo in environmental sciences support ongoing colonial impacts? How can we stand with Indigenous science? And how can collaborative work at the intersection of Indigenous and Eurocentric sciences help address "wicked problems," such as conservation and sustainability in the context of the climate crisis? This 16-chapter volume brings together 43 Indigenous and non-Indigenous authors, academic instructors, emerging scholars, community members, government scientists, researchers, youth, and practitioners, along with three research collectives. It offers concrete examples of collaborative research projects and amplifies the voices of those most affected. The editors and authors provide tools, guidance, and advice for creating a lasting impact for healthier people and planet. Power With is designed to be accessible for 200- to 300-level students as well as environmental practitioners. It includes several dialogue-based chapters to enhance engagement and forward Indigenous epistemologies. This timely collection offers a clear and accessible resource for courses in environmental sciences and studies, Indigenous studies, sociology, anthropology, geography, forestry, gender studies, and health studies.