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 task of transforming the relationship between people, their circumstances and the biological world of nature and bodies. For Geof Rayner and Tim Lang, this is about facing a number of long-term transitions, some well recognized, others not. These transitions are Demographic, Epidemiological, Urban, Energy, Economic, Nutrition, Biological, Cultural and Democracy itself. The authors argue that identifying large scale transitions such as these refocuses public health actions onto the conditions on which human and eco-systems health interact. Making their case, Rayner and Lang map past confusions in public health images, definitions and models. This is an optimistic book, arguing public health can be rescued from its current dilemmas and frustrations. This century's agenda is unavoidably complex, however, and requires stronger and more daring combinations of interdisciplinary work, movements and professions locally, nationally and globally. Outlining these in the concluding section, the book charts a positive and reinvigorated institutional purpose.

What is public health? To some, it is about the infrastructure for health -- drains, water, food, housing. These require engineering and expert management. To others, it's about the State using medicine or health education to prevent the public harming itself through poor lifestyles. This book, part historical, part prospective, argues that public health needs an overhaul. It should return to and modernize itself around ecological principles. Ecological public health thinking addresses what are described as four levels of existence: the material, biological, social and cognitive worlds. The long tradition of public health has always been reactive, responding to and transforming the relationship between people, their circumstances and the biological world of nature and bodies. The authors show how twenty-first century public health is being shaped by a number of long-term transitions, some long recognized, others not. These transitions are demographic, epidemiological, urban, energy, economic, nutrition, biological, cultural and democracy itself. Facing them all is required if the health of people and the planet are to be integrated.Ecological public health thinking, the authors argue, has been marginalized partly because it has lacked clear analysis, and partly because of the scale and complexity of the issues which need to be addressed. Public health thinking has partly lost its way because it has been subsumed into the problems rather than championing solutions. Often linked to the State, it has adapted to consumerism rather than championing citizenship. Returning to ecological public health requires stronger and more daring combinations of interdisciplinary work, movements and professions, and a reinvigoration of institutional purpose.