Dr Caleb Dresser is a practicing emergency physician whose work focuses on two key questions: First, what does climate change mean for our healthcare systems and the patients we serve? And second, what can we do to address this situation? Answering these questions has meant building a research portfolio that includes developing and testing resources for clinicians and administrators, analyzing operational and medical records data, and using spatial methods to understand risk to healthcare facilities. Dr Dresser is an Assistant Professor of Emergency Medicine at Harvard Medical School and an Assistant Professor in Environmental Health at the Harvard T.H. Chan School of Public Health. He also serves as Assistant Director of the Physician Fellowship in Climate and Human Health, leads work on healthcare-related solutions at the Harvard Chan Center for Climate, Health, and the Global Environment, and is a member of the Faculty of Emergency Medicine at Beth Israel Deaconess Medical Center.