Caleb Jackson Dresser


Environmental Health

Other Positions

Assistant Professor of Emergency Medicine

Emergency Medicine-Beth Israel Deaconess

Harvard Medical School


Caleb Dresser is Assistant Director of the Fellowship in Climate and Human Health, Climate MD Program Lead at Harvard C-CHANGE, an Emergency Medicine Attending at Beth Israel Deaconess Medical Center, and an Instructor at Harvard Medical School.

He is affiliated with the Harvard FXB Center for Health and Human Rights, the Center for Climate, Health, and the Global Environment at the Harvard T.H. Chan School of Public Health, and CrisisReady. His research focuses on understanding the public health and healthcare implications of climate-related extreme weather events, and he is actively involved in efforts to educate healthcare workers, policymakers, and the general public about the value of action to protect human health in the context of the ongoing climate crisis.

Caleb was the inaugural Fellow in Climate and Human Health in the Department of Emergency Medicine at Beth Israel Deaconess Medical Center (2019 to 2021) and is a graduate of the Master of Public Health program at the Harvard T. H. Chan School of Public Health. He completed his medical education at the University of Massachusetts Medical School and his residency in Emergency Medicine through the Harvard Affiliated Emergency Medicine Residency at Beth Israel Deaconess Medical Center.


Experts debrief on COP28 climate and health takeaways

Members of the Harvard community who attended COP28—the two-week international climate summit held in late 2023 in Dubai—gathered January 30 to discuss key takeaways, lessons learned, and next steps in the climate and health arena.

Keeping people safe from extreme heat

With millions of Americans facing day after day of temperatures well above 100 degrees, experts from Harvard Chan C-CHANGE are speaking out about ways to mitigate the dangerous health effects of extreme heat.