This paper argues against the view that a single environmental ethic can be formulated that could be universally applied in all geographic settings and across cultures. The paper specifically criticizes Callicott's proposal that Leopold's land ethic be adopted as a global environment ethic, and develops an alternative bioregional perspective which suggests that while there can be a great deal of variety in how different cultures think about and interact with their local environments, there is nonetheless the need for cross-cultural dialogue (...) on how specific problems that transcend cultural boundaries can be successfully resolved. (shrink)