In this challenging look at the people who are the heartbeat of the environmental movement, Farley Mowat reveals the astonishing energy and passion that have confronted everything from the destruction of whales to the scandal of spraying for spruce budworm. The characters who give personality to these complex and divergent groups-groups as varied as the Sierra Club and the animal liberation movement- are all concerned, as Mowat has been all his life, with the appropriate balance between human beings and the planet they have hitherto dominated.