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
$528 Cost per credit is calculated using tuition per credit for the current academic year. It does not include associated fees, course materials, textbook expenses, and other expenses related to courses.
Online You can complete all courses online. Some courses may require proctored exams in your local area.
Start terms
4 per year

Professional Science Master's in Environmental Sciences – Online


The Professional Science Master’s in Environmental Sciences (PSM ENSC) program is offered as a non-thesis degree program only. You’ll have an advisor and graduate committee to review your program of study, provide career and internship advice, and evaluate a final report based on the internship or project experience.

45-credit master's program online

The program includes course work in environmental sciences as well as courses from other academic units on campus.

Environmental sciences core (7 credits)

  • Environmental Perspectives and Methods (3 credits)
  • Environmental Analysis (3 credits)
  • Responsible Conduct of Research (1 credit)

Environmental sciences tracks (10-12 credits)

Tracks, or areas of concentration, give focus and identity to your curriculum and allows for flexibility in response to changing employment demands. You will choose courses listed within one of eight tracks:

  • Biogeochemistry
  • Climate change
  • Ecology
  • Environmental education
  • Natural resources
  • Quantitative analysis
  • Social science
  • Water resources

Numerical skills (6-8 credits)

Example courses:

  • Algorithms and Data Structures (4 credits)
  • Database Management Systems (4 credits)
  • Research Methods in Social Science (4 credits)
  • Quantitative Analysis in Social Science (4 credits)
  • Geographic Information Systems (4 credits)
  • Oceanographic and Atmospheric Data Analysis I (4 credits)
  • Introduction to Mathematical Statistics (4 credits)

Business core (8 credits)

The course work in the professional core enables you to serve as an integratorbetween the scientific and business communities in industry, consulting, NGOs and government.

  • The Essence of Business – Accounting and Finance (4 credits)
  • The Essence of Business – Management and Marketing (4 credits)

Business and professional electives (6 credits)

Expand your business training in alignment with a particular area of interest with two professional elective classes.

Example courses:

  • Innovation Management (3 credits)
  • Interpersonal Communication (3 credits)
  • Bargaining and Negotiation (3 credits)
  • Ecological Policy (3 credits)
  • Environmental Law and Business (3 credits)
  • Design for Environment, Safety, and Health (3 credits)

Internship/project (6 credits)

Internships can take place in a variety of venues, including but not limited to: environmental consulting or engineering firms; businesses involved in land-use planning; NGOs; global organizations; governmental agencies in the public sector such as the U.S. Environmental Protection Agency; the U.S. Forest Service; the U.S. Department of Agriculture; and the Bureau of Land Management.

During your internship, you’ll will become aware of the costs of protecting resources, career opportunities in the field of environmental sciences, management and policy, and the breadth of the environmental industry in today’s business world.

Your PSM advisor and graduate committee will help define specific objectives for the proposal and help identify potential internship opportunities. However, it is your responsibility to formally initiate the internship with an industry supervisor.


Notice to all students: Due to Massachusetts Department of Higher Education guidelines, internships cannot be completed within the state of Massachusetts. Students intending to complete an internship in Massachusetts must work their academic advisors or department to make alternate arrangements.

Request info

Related stories

The first-class ticket to a degree: Oregon State Ecampus

For Calais Bickford-St. Pierre, pursuing a degree online was her passport, and Oregon State University Ecampus was her first-class ticket.The post The first-class ticket to a degree: Oregon State...

Behind the scenes with Dawn Marie Gaid, environmental sciences academic advisor

Because this major aligns with my values, I find it easy to cheerlead any student dedicated to the mission of protecting/conserving the environment," says environmental sciences academic advisor Dawn...

How long do you pursue your goals? As long as it takes  

How old were you when you discovered your dream job? Many of us are still trying to figure it out. Not Jason Deger. He knew at a young age - thanks...