New research finds widespread chemical exposure in the modern world. A recent U.S. study of 171 pregnant women found more than 9-in-10 had potentially harmful chemicals in their bodies. While exact health effects are unknown, researchers worry such exposures could be harmful and driving up rates of human disease and developmental disorders. Meanwhile, another report found air and water pollution now causes 1-in-6 deaths worldwide. Experts say it's a crisis akin to climate change and needs new global solutions.