What is public health? To some, it is about drains, water, food and housing, all requiring engineering and expert management. To others, it is the State using medicine or health education and tackling unhealthy lifestyles. This book argues that public health thinking needs an overhaul, a return to and modernisation around ecological principles. Ecological Public Health thinking, outlined here, fits the twenty-first century's challenges. It integrates what the authors call the four dimensions of existence: the material, biological, social and cultural aspects of life. Public health becomes the...