A Voice for Earth: American Writers Respond to the Earth CharterA Voice for Earth is a collection of poems, essays, and stories that together give a voice to the ethical principles outlined in the Earth Charter. The Earth Charter was adopted in the year 2000 with the mission of addressing the economic, social, political, spiritual, and environmental problems confronting the world in the twenty first century. Part 1 of the book, "Imagination into Principle," comprises Steven C. Rockefeller's behind the scenes