Throughout literary history, many Utopian writers have envisioned an ideal world resulting from new and better technologies. Cuma's Voice: An Environmental Utopia contrasts urban life in 21st Century America with an existence that might have evolved on Earth had human society not developed along technological lines. Conversations between Cuma and Cynthia examine attitudes about the environment, social structures, education, religion, and human conflict. In the process, the dialogues raise important questions about the meaning of both sustainability and progress.