"More and more, men are beginning to understand the severity of the problems which face them today. On all fronts — political, economic and social — these problems multiply and cause much heartache and sad shaking of heads. Add to these the environmental problems which man’s cavalier attitude to nature and its resources has engendered, and the future for mankind looks bleaker still. The realization is dawning that mankind’s life is in crisis and that something radical must be done before it is too late."