A German chemist and co-author of Cradle to Cradle, who has been active in environmentalism since the late 1970s and serves as the director of the Environmental Protection Encouragement Agency (EPEA). His career was notably shaped by environmental activism and work on developing safer industrial chemicals.

A group representing historical and modern figures focused on increasing efficiency and profit within industries. The authors depict them as initially unaware of their environmental impact, illustrating their opposition with environmentalists as a misconception.

A collective of individuals and movements advocating for environmental protection, particularly during and after the 1960s. The authors argue that their focus on limiting growth could benefit from a broader vision of ecological abundance.