Book excerpt: In this provocative anthology, scholars consider the meaning and merits of “nature” in debates about biotechnology and the environment. Drawing on philosophy, religion, and political science, this book asks what the term “nature” means, how it should be considered, and if it is—even in part—a social construct. The contributors question if the quality of being “natural” is intrinsically valuable. They also discuss whether appeals to nature can and should affect public policy and, if so, whether they are moral trump cards or should instead be weighed against other concerns. Though consensus on these questions remains elusive, this should not be an obstacle to moving the debate forward. By bringing together disparate approaches to addressing these concepts, The Ideal of Nature suggests the possibility of intermediate positions that move beyond the usual full-throated defense and blanket dismissal found in much of the debate. Scholars of bioethics, environmental philosophy, religious studies, sociology, public policy, and political theory will find much merit in this book’s lively discussion.