Harvard Chan C-CHANGE taps into the collective knowledge of student leaders at the Harvard Chan School, through our Student Ambassador Program.

This year-long program equips Harvard Chan master and doctoral students with critical skills to become climate and health leaders. The program cultivates a community of students at Harvard Chan who are interested in climate change, strengthens the connections between the Center and departments across the school, and helps students understand how climate change impacts their respective fields of study. 

For more information, contact Skye Flanigan.

Class of 2021-2022

Jessica Schiff

Masters Student of Environmental Health

Jessica Schiff is a third year Master of Science student at the Harvard T.H. Chan School of Public Health. She graduated with a Bachelor’s Degree in Biology from Boston University in 2017. Jessica is interested in the intersection between climate and health and is excited to learn more about the direct, and indirect, impacts of global climate change on human health. She is looking forward to being exposed to climate related research being carried out in her department and at C-CHANGE, as well as across the T.H. Chan school. Her current interests include the impacts of natural disasters/weather on disease transmission, ecosystem transformation and health, and forced migration and conflict related to climate change. In her free time, Jessica enjoys baking, traveling, and reading.


Adele Houghton

Doctoral Student of Public Health

Adele Houghton is a second year Doctor of Public Health (DrPH) student at the Harvard T. H. Chan School of Public Health. A registered architect and green building professional, Adele works at the intersection of public health, climate change, and the built environment. Her research investigates the gap between the goals of climate change and chronic disease policies, on the one hand, and the priorities of individual building project teams on the other.


Eirliani Abdul Rahman

Doctoral Student of Public Health

Eirliani Abdul Rahman (aka “Lin”) is a first-year student in the doctoral program in public health (DrPH). She would like to leverage the C-CHANGE program to bring attention to climate change as an important risk factor for human trafficking. Her diplomatic experience, having served in the Singapore Foreign Service, coupled with working for the Nobel Peace laureate Kailash Satyarthi, gives her a unique perspective on public health challenges, especially the link between human trafficking and poor health. A Fellow of the Royal Society for the Encouragement of Arts, she loves exploring the Arctic and has trained with renowned polar explorers Matty McNair and Sarah McNair-Landry in Nunavut, Arctic Canada.


Doctoral Student of Biological Sciences

Marwa Osman is an environmental justice advocate and first-year Ph.D. student in the Biological Sciences in Public Health program. She received her undergraduate degree in 2021 from the University of Colorado Boulder in Molecular, Cellular, and Developmental Biology and a minor in community leadership studies. As a scientist, she hopes to pursue innovative research at the intersection of human health and environmental justice. She is particularly interested in the molecular and physiological mechanisms of environmental exposures, and the potential resulting neurological implications.


Masters Student of Occupational and Environmental Health

Yuan-Hsin Chen is currently an MPH candidate in the Occupational and Environmental Health at the Harvard Chan School of Public Health. She worked as a resident physician in general and family medicine at medical center in Taiwan after graduated from medical school. She ever cooperated with the government to evaluate health status for residents exposed to ionizing radiation. She is looking forward to figuring out ways to prevent climate disaster and promote population health by combining her previous experience in medicine and new concepts learning from Environmental Department and Harvard Chan C-CHANGE.


Ellen Chappelka

Masters Student of Health Policy and Management

Ellen Chappelka is a second year MPH student in the Health Policy and Management Department. Her interests include the intersection between cities, health, and climate change, and as an undergraduate she was able to explore this interest by developing emergency plans for Tulane Hospital. She previously worked as a project assistant on the Transportation, Equity, Climate, and Health (TRECH) Project with Harvard Chan C-CHANGE. Ellen has also worked as an EMT for New Orleans EMS worked in Germany for the United States Air Force on public health interventions to optimize medical readiness for Airmen. Ellen holds a B.S. in Public Health from Tulane University, and in her free time she enjoys hiking and exploring new cities.


Ivy Fangyu Lin

Masters Student of Health Policy and Management

Ivy Fangyu Lin is a first year MPH student in Health Policy. She is from Montreal, Canada, and has previously completed a DMD from McGill University, and a GPR at University of Washington. Ivy is passionate about social equity, preventive healthcare, and politics, but is particularly concerned about the urgency of climate change. Through C-CHANGE, she looks forward to expanding her climate advocacy toolkit, with an emphasis on incorporating the impacts of climate change on health. Her ideal Sunday would be filled with hiking, running, trying out new restaurants, and singing karaoke.

Kate Adams

Masters Student of Nutrition

Kate Adams is a second year MPH-65 student in the Nutrition Department and is thrilled to be joining the C-CHANGE Student Ambassador program. After completing undergrad at Connecticut College where she studied policy, human development, and Hispanic studies, she worked with families facing homelessness in the Boston area around childcare and food access.  At Harvard, is currently involved with the Walker Study Group where she works on a program that connects local farmers with low-income consumers in Puerto Rico through the distribution of fresh produce boxes at community health clinics. Kate is interested in further exploring the intersection of sustainable agriculture, nutrition, and environmental health.

Angela Stegmuller

Masters Student of Environmental Health

Angela Stegmuller is a first year S.M. student in the Department of Environmental Health. She completed her undergraduate studies at the University of Delaware, where she majored in biochemistry and minored in public health. Prior to attending the Chan School, she worked as a Research Data Analyst at an academic center. She used analytical tools to estimate the impact of maternal, neonatal, and child interventions on health and nutrition outcomes in low- and middle-income country settings. At Harvard, she is interested in learning epidemiological methods that can be used to evaluate the relationship between climate-related exposures and human health. Angela enjoys nature, music, and animals in her free time.

Flora Xu

Masters Student of Environmental Health

Flora Jiaxuan Xu graduated from UC Berkeley double majoring in Sustainable Environmental Design and Cognitive Science and is currently in the MS80 in Environmental Health at Harvard T.H. Chan School of Public Health. Her major interests lie in how human perceptions and the built environment interact with each other and is passionate about finding solutions to tackle environmental issues from not only scientific but also ideological perspective. She believes that environmental issues/ sustainability is a collective responsibility, which requires collaborations from the individual level to society level while having efforts from all fields jointly. She is interested in solving environmental issues creatively by including people into the equation.

Caroline Shannon

Masters Student of Health Policy

Caroline Shannon is pursuing her MPH-45 in Health Policy. She is entering into public health as an architect dedicated to creating transformational spaces and experiences that support health, equity, and resilience. She is looking forward to collaborating across disciplines and geographies to addressing the pressing challenges of climate change. She graduated from Amherst College and the Harvard Graduate School of Design’s MArch I program. Caroline is an avid runner and outdoor enthusiast.

Julia Malits

Degree Candidate for Doctor of Medicine and Masters of Public Health

Julia Malits is a joint MD-MPH candidate at the Harvard T.H. Chan School of Public Health and Harvard Medical School (Class of 2023). This year, she is pursuing an MPH within the Department of Environmental Health. As an undergraduate at Cornell, she studied biology, human nutrition, and environmental science and sustainability. Her prior research experience has focused on investigating the health outcomes and societal costs associated with exposure to endocrine disrupting chemicals among children. Her current academic interests include the health impacts of climate change, climate resilience for the healthcare sector, sustainability, environmental justice, and maternal and child health. She in an outdoor enthusiast and can be found hiking with her dog most weekends.

Leah Martin

Masters Student of Environmental Health

Leah Martin is a first year S.M. student in the Department of Environmental Health at the Harvard T.H. Chan School of Public Health. After completing her B.S. in Molecular Biology at California State University, Monterey Bay, Leah worked for the United States Department of Agriculture (Agricultural Research Service) and the Children’s Cancer Therapy Development Institute. Leah’s current academic and research interests include climate change and maternal health, environmental epidemiology, and environmental pollutants, specifically, endocrine-disrupting chemicals. In her free time she enjoy film photography, mountaineering, running, and learning new languages.