And speaking of environmentally sensitive moms and pops: How does being an environmentalist affect the decision to have a baby, and how does the environment at large affect the prenatal environment? Those questions are central to Sandra Steingraber's Having Faith: An Ecologist's Journey to Motherhood. Reviewer and prospective mother Jonna Higgins-Freese looks at Steingraber's contribution to the small but growing genre of environmental parenting books, only on the Grist Magazine website.