Attending the United Nations Conference on the Human Environment at Stockholm was an exhilarating but sobering experience. No one who was there, including the sharpest critics of faults and omissions, doubts that the Stockholm Conference was an epochal incident which will mark a major turning point in the history of man and the earth. The Stockholm Conference was distinguished as an "action" meeting. It was planned during the years of intensive preparatory work to have a clearly stated, well-considered agenda and to be ready to produce concrete proposals upon which action in the environmental interest could be based. As a result, an overall Declaration on the Human Environment 1 was adopted by the 114 nations represented at the conference. The declaration embodied twenty-six principles and a series of 109 specific recommendations for action to tackle the environment problem, not simply to talk about it.