Des Moines Water Works has repeatedly warned that Iowa must be diligent about fighting water pollution to avoid a repeat of the water-contamination disaster in Flint, Mich. The damage caused by Flint’s change in water source -- which brought lead contamination -- is still being tallied. A new study notes that fetal death rates increased by 58 percent in Flint after the city switched its water source in April 2014, CBS reports. "The costs of this water change were not limited simply to effects on children and adults, but also led to large decreases in fertility rates, which could have long-lasting effects on the city itself," said Daniel Grossman, co-author of the study. Read more