Since the Industrial Revolution, people have been pumping all manner of pollutants into the air, and chemist Lyatt Jaeglé has spent her career trying to figure what that means for the atmosphere. Through a combination of modeling and observations, she studies how air pollution from Asia makes its way across the seas to North America, how aerosols can affect the Arctic, and the ways that the mercury cycle has changed due to increased coal usage. She has received numerous awards throughout her career for her work, including both the prestigious NSF Faculty Early Career Development Award, and a NASA New Investigator Award.