Lewis Mumford, one of the most respected public intellectuals of the twentieth century, speaking at a conference on the future environments of North America, said, “In order to secure human survival we must transition from a technological culture to an ecological culture.” In Ecohumanism and the Ecological Culture, William Cohen shows how Mumford’s conception of an educational philosophy was enacted by Mumford’s mentee, Ian McHarg, the renowned landscape architect and regional planner at the University of Pennsylvania. McHarg advanced a new way to achieve an ecological culture―through an educational curriculum based on fusing ecohumanism to the planning and design disciplines. 

Cohen explores Mumford’s important vision of ecohumanism—a synthesis of natural systems ecology with the myriad dimensions of human systems, or human ecology―and how McHarg actually formulated and made that vision happen. He considers the emergence of alternative energy systems and new approaches to planning and community development to achieve these goals.

The ecohumanism graduate curriculum should become the basis to train the next generation of planners and designers to lead us into the ecological culture, thereby securing the educational legacy of both Lewis Mumford and Ian McHarg.

Human ecology is an emerging discipline that studies the interrelationships between humans and their environment, drawing on insights from biology, sociology, anthropology, geography, engineering, architecture, landscape architecture, planning, and conservation. A vast, multidisciplinary literature underscores this approach, and in Human Ecology, noted landscape planner Frederick Steiner synthesizes the work of diverse, sometimes divergent, scholars to illustrate how human interactions can be understood as ecological relationships, using hierarchy as an organizing device.

Steiner builds on the work of leading thinkers including Christopher Alexander, William Cronon, Clifford Geertz, James Lovelock, Eugene Odum, Paul Shepard, Anne Whiston Spirn, E. O. Wilson, Gerald Young, and many others to present a historical and analytical examination of how humans interact with each other as well as with other organisms and their surroundings.

The first two chapters summarize the development of this "new ecology" and the theory of human ecology. The remainder of the book provides an accessible introduction to the major elements of human ecological theory including language, culture, and technology; structure, function, and change; edges and boundaries; interaction, integration, and institution; diversity; and adaptation. The chapters are organized hierarchically from the smallest scale to the largest with each chapter addressing a specific level as an ecosystem. The final chapter probes some of the ethical implications of this new field.

Human Ecology brings together for the first time scholarship from the social and natural sciences as well as the environmental design arts to offer an overview of the field of human ecology and to show how the field may help us to envision our futures. While the approach is largely theoretical, it has broad policy and practical implications, and represents an important new work for anyone concerned with interactions between humans and the environment.