At the Edge is a rich and evocative call to action at a time when new ideas are urgently needed. Mandatory reading for policy analysts and decision makers in the public, private, and volunteer sectors, it will be equally useful to scholars, teachers, students, and others interested in creating sustainable societies. Throughout the world, biophysical evidence is mounting that human growth and activity patterns are slowly destroying the earth. This ecological deterioration is accompanied by similar social and economic decline, with potentially grave consequences for the continued existence of human societies.