Planetary Health - the idea that human health and the health of the environment are inextricably linked - encourages the preservation and sustainability of natural systems for the benefit of human health. Drawing from disciplines such as public health, environmental science, evolutionary anthropology, welfare economics, geography, policy and organizational theory, it addresses the challenges of the modern world, where human health and well-being is threatened by increasing pollution and climate change. A comprehensive publication covering key concepts in this emerging field, Planetary Health reviews ideas and approaches to the subject such as natural capital, ecological resilience, evolutionary biology, One Earth and transhumanism. It also sets out through case study chapters the main links between human health and environmental change, covering: - Climate change, land use and waterborne infectious diseases. - Sanitation, clean energy and fertilizer use. - Trees, well-being and urban greening. - Livestock, antibiotics and greenhouse gas emissions. Providing an extensive overview of key theories and literature for academics and practitioners who are new to the field, this engaging and informative read also offers an important resource for students of a diverse range of subjects, including environmental sciences, animal sciences, geography and health.