Microplastics: they are roughly the size of a sesame seed, and they show up nearly everywhere, including the world’s waterways and food supply. Scientists are not sure how harmful microplastics may be to humans, animals, and marine life, but they are increasingly concerned. On International Women’s Day, Georgia Arbuckle-Keil, professor of chemistry at Rutgers University in Camden, discusses her work in determining just how dangerous—or innocuous—microplastics really are. “Although microplastics have been documented worldwide, their toxicological implications are not yet known,” Arbuckle-Keil said. To read the full story.