Contents -- List of Illustrations -- Foreword by Robert F. Kennedy Jr. -- Introduction -- Earth Day: When the People Spoke -- Report Card on the Earth -- Windows on the World -- Vanishing Resources -- An Invisible Threat -- Complacent Planet? -- Achieving Sustainability -- An Appeal -- Appendix 1: Letter to John F. Kennedy -- Appendix 2: Introduction to "Environmental Agenda for Earth Day 1970" -- Notes -- Acknowledgments -- Index.