Having Faith is Steingraber's exploration of the intimate ecology of motherhood. Using her scientist's eye to study the biological drama of new life being knit from the molecules of air, food, and water flowing into her body, she looks at the environmental hazards that now threaten pregnant and breastfeeding women, and examines the effects these toxins can have on a child. Having Faith makes the metamorphosis of a few cells into a baby astonishingly vivid, and the dangers to human reproduction urgently real.