Herman Daly is an American ecological economist and professor at the School of Public Policy of University of Maryland, College Park.

Herman Daly has been named Adbuster Magazine's Person of the Year. View his featured article, "Big Idea: Steady State Economy" on the Adbusters website.

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Dayna is Co-founder of the Biomimicry Guild, a world leading innovation company which draws on deep knowledge of biological adaptations to help designers, engineers, architects, and business leaders solve design and engineering challenges sustainably.

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Bill McKibben is an American environmentalist and writer who frequently writes about global warming, alternative energy, and the risks associated with human genetic engineering. Beginning in the summer of 2006, he led the organization of the largest demonstrations against global warming in American history. McKibben is active in the Methodist Church, and his writing sometimes has a spiritual bent.

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