Abstract
Some anthropocentrists, such as Bryan Norton, claim that intergenerational anthropocentrism provides the best rationale for protecting biodiversity. Some nonanthropocentrists, such as J. Baird Callicott and Eric Katz, disagree. In the present paper, I analyze different varieties of anthropocentrism, argue for adopting what is here called multicultural anthropocentrism, and then advance the following thesis of environmental synergism: combining multicultural anthropocentrism with nonanthropocentrism enables synergists to argue more cogently and effectively than either anthropocentrists or previous nonanthropocentrists for policies that both protect biodiversity and maximize long-term welfare for human beings as a group