Credits required
45 Oregon State University is on a quarter-term system. There are four quarters each year and classes are 11 weeks long. This program's 45 quarter credits are equal to 30 semester credits.*
Cost per credit
$571 Based on current tuition rates. No additional charge for nonresident students. Does not include course materials and associated fees and expenses.
Online You can complete all or nearly all requirements of this program online. View the curriculum.
Start terms
4 per year

Professional Science Master's in Environmental Sciences – Online

Join the new wave of environmental leaders

Oregon State University is known for its expertise in delivering interdisciplinary education in environmental sciences, with a track record of producing graduates on the leading edge of research as well as environmentalists with strong business acumen.

No matter which career pathway appeals to you most, you can pursue it online by earning a Master of Science in Environmental Sciences or a Professional Science Master’s in Environmental Sciences through Oregon State Ecampus.

Both the M.S. and PSM programs will provide you with access to industry experts and knowledge that will position you to lead in the field – whether you’re just starting your career or if you’re already an active professional.

Master of Science

Oregon State’s M.S. in Environmental Sciences online program has a narrow focus within the science industry, and it will prepare you to understand complex interrelationships among biological, physical and human components of ecosystems.

The M.S. coursework aims to develop scientists who will be able to analyze and understand environmental systems, predict environmental change and participate in the management of the environment.

Write a thesis or complete a project

A central purpose of the M.S. degree is for you to learn the process of environmental research. You can elect to conduct original research that leads to a thesis or complete a non-thesis project report.

Professional Science Master's

The PSM in Environmental Sciences program offers an interdisciplinary approach to environmental sciences and business, helping you develop the necessary business acumen to be a credible leader who can bridge the gap between scientists, business professionals and decision-makers.

The PSM curriculum is designed to provide you with cutting-edge, professional training in scientific and business disciplines that are not included in traditional science master’s or doctoral programs.

Non-thesis program with an internship

An essential part of the PSM program is an internship experience that replaces the traditional master's research project or thesis. This integrative learning experience gives you the opportunity to work directly with a business, industry, government agency, consulting firm, NGO or research institute related to your area of concentration.

You will engage in real-world work situations that involve technical scientific challenges, teamwork, communications, project management and decision-making.

Nationally certified program

National Professional Science Master's Association

Oregon State's PSM in Environmental Sciences program is recognized by the National Professional Science Master's Association. It is a collaborative that supports internship and job placement opportunities for PSM students and graduates.

Benefits of earning your degree online from Oregon State

  • All classes are developed and taught by Oregon State's world-class faculty, who are renowned for their research, expertise and innovation.
  • OSU is institutionally accredited by the Northwest Commission on Colleges and Universities.
  • Oregon State is one of only three universities in the nation to hold land, sea, space and sun grant designations.
  • Oregon State Ecampus is consistently ranked as a national leader in online education.
  • OSU's online students receive the same diploma and transcript as on-campus students.

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Environmental sciences online master’s program yields career rewards for graduate  

When she retraces the path that led to her current role as an environmental analyst for local government, Kaitlin Thurman points to four ways Oregon State Ecampus and its environmental sciences master's program helped make her dream a reality.

Oregon State Everywhere: ‘Consider where you want to go, not where you are’

Justin Nelson says the topics covered in Oregon State's online environmental sciences master's degree program are ideal for helping students who want to change careers "break into new markets and industries." Earning a master's led Justin to a new role working in corporate sustainability strategy.

Oregon State Everywhere: ‘Education is an investment in yourself, and you are worth it’

Here's my advice to anyone who is considering going back to school: Go for it! There is no better time than now. ... Education is an investment in yourself, and you are worth it. OSU Ecampus was user-friendly, with great support." — Matt Bowling, Oregon State Ecampus...