With a Master of Science in Environmental Science (MSES) degree from the O’Neill School, you’ll become an environmental professional—mastering the science, along with the analytical and policy skills needed to apply scientific knowledge and lead the way toward solving environmental issues facing our global society.Apply for admission Request more information
Master of Science in Environmental Science (MSES)
Our MSES program is one of the oldest—and largest—in the nation.
Benefit from our interdisciplinary approach
You’ll study at a top-tier research institution with access to an expansive and varied curriculum—earning an integrated, holistic degree from a school with an established, national reputation.
Graduate prepared to lead in the public, nonprofit, or corporate world, pairing big-picture ideas with hands-on experience.
The MSES program
Our MSES program is a professional two-year, 48-credit hour degree program with four components.
Add an MPA to your MSES degree
Get more education in less time with a dual degree—combine your MSES with an MPA and earn two master's degrees in less time than it would take to earn each degree separately and become sought after by environmental agencies also seeking policy expertise.Learn more about the MPA-MSES
Learn from the best
Our faculty members are top research scientists, serious scholars, and dedicated educators, advisors, and mentors.
They earn accolades—from National Science Foundation awards to Fulbright fellowships to the Nobel Prize. As a student at O’Neill, you’ll benefit from their expertise and work alongside them in a collaborative environment.
O’Neill’s interdisciplinary nature prepares MSES students for environmental careers by combining environmental policy with a broad base of scientific knowledge and technical skills.—Joe Morgan, MSES’14