Bachelor's in Environmental Science and Engineering

Why pursue a bachelor's degree in Environmental Science and Engineering?

Environmental Science and Engineering (ESE) AB and SB interdisciplinary programs focus on understanding, predicting, and responding to environmental problems. Students receive strong and broad training in physics, chemistry, engineering, ecology, and mathematical modeling, in a way that makes them uniquely understand the connections needed to solve environmental problems. They take advanced classes in energy systems, climate science, hydrology, and environmental pollutants. They gain hands-on experience through field, laboratory, computer modeling, and big data projects, working with ESE faculty who are world leaders in their fields. They can also carry out projects with faculty in other areas of SEAS.

At Harvard College, students choose a "concentration," which is what we call a major. All prospective undergraduate students, including those intending to study engineering and applied sciences, apply directly to Harvard College. During your sophomore spring you’ll declare a concentration, or field of study. You may choose from 50 concentrations and 49 secondary field (from Harvard DSO website).

Students interested in Environmental Science & Engineering have the option to pursue:

  • Bachelor of Arts (A.B.) in Environmental Science and Engineering
  • Bachelor of Science (S.B.) in Engineering Sciences (an ABET accredited program) on the Environmental Science and Engineering Track

Learn about our Environmental Science and Engineering Concentrators >

Apply to Harvard College >



Learn more about the Environmental Science and Engineering requirements.

AB/SM Program

Our AB/SM degree program is for currently enrolled Harvard College students only.


View current Environmental Science and Engineering courses.

Research Opportunities in Environmental Science and Engineering

As part of your Environmental Science and Engineering coursework, or perhaps as part of individual research opportunities working with professors, you will have the chance to take part in or participate in some extraordinary projects. Learn more about research opportunities at Harvard SEAS.

Learn about the research interests of our Environmental Science and Engineering faculty.

Bachelor's in Environmental Science and Engineering Career Paths

Read about some of our Environmental Science and Engineering Alumni.

Engineering Advising Events and Resources

Get pre-concentrator advice on the SEAS First-Year and Sophomore Advising Events Canvas Page. The page lists upcoming advising events for first-years and sophomores before declaration,  has recordings from virtual Webinars and Q&A sessions, and other advising resources.

Bryan Yoon (Ph.D.) is the Assistant Director of Undergraduate Studies in Environmental Science and Engineering. With an undergraduate degree in environmental planning and graduate degrees in ecosystem biogeochemistry, Bryan has research and teaching experience in a variety of topics in environmental sciences. Whether you are thinking about joining ESE or looking for someone to discuss your thesis ideas, Bryan’s here to help you. For questions or setting an appointment, please email

Daniel Jacob is the Area Chair for Environmental Science and Engineering and the Vasco McCoy Family Professor of Atmospheric Chemistry and Environmental Engineering. He holds an undergraduate degree in Chemical Engineering and a PhD in Environmental Engineering. If you have any questions or would like to set up an appointment to discuss the ESE concentration and how it aligns with your goals, please email 

Clubs and Organizations

SEAS-affiliated student organizations are critical to the overall growth of our concentrators as engineering and applied science professionals. These organizations enable our students to pursue passion projects and events in areas of interest that are complementary to the current formal academic curriculum. Learn more about SEAS-affiliated student clubs and organizations.