The Three Minute Thesis (3MT) challenges graduate students to communicate their research in three minutes or less in non-specialist language. Contestants represent a diverse array of disciplines and areas of study, and reflect the passion and thirst for discovery common among all of Iowa's graduate students. Moala Keshei Bannavti, a Ph.D. student in civil and environmental engineering, is the 2020 winner. Her presentation focused on remediation efforts of PCBs in schools.