Credits required
180 Oregon State University is on a quarter-term system. There are four quarters each year and classes are 11 weeks long. This program's 180 quarter credits are equal to 120 semester credits.
Cost per credit
$309 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.
100% online You can complete all courses in this program 100% online. View the curriculum.
Start terms
4 per year

B.S. Environmental Sciences – Online


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Environmental sciences academic advisor Dawn Marie Gaid is well-known and well-liked for being a tireless advocate for OSU Ecampus students. Read more »

This is a 180-credit undergraduate program at the end of which you will earn a Bachelor of Science in Environmental Sciences. 

The degree requirements consist of these main areas:

  1. Baccalaureate core plus a Writing Intensive Course (WIC)
  2. Environmental sciences major:
    • Basic science and math: 53 – 55 credits
    • Environmental sciences core: 27 – 34 credits
    • Specialization area: 27 credits or more
    • Experiential learning: 3 credits or more
  3. Electives: as needed to meet the 180-credit minimum to graduate

Total: 180 credits (including at least 60 upper-division credits)

Sample course topics

  • Natural resources and community values
  • Environmental law
  • Oceanography
  • Geographic information systems and theory
  • Sustainability for the common good
  • Urban forestry
  • Technology, energy and risk
  • Climatology
  • Fish and wildlife conservation
  • Ecology
  • Watershed management
  • Water science and policy
  • Environmental geology

To view the environmental sciences major requirements, please visit Oregon State’s official academic catalog. For additional information about the baccalaureate core, please visit our bacc core details page.

Compare ENSC with other degree programs

Check out this degree comparison table to evaluate how ENSC compares to fisheries and wildlife sciences, rangeland science, natural resources and other online degree programs. The environmental sciences degree focuses on a strong foundation in math and science and on hands-on field research; as a consequence, the traditional science coursework requirement is considerable.  Be prepared for math.  In order to succeed in the degree program, students must pass and be proficient in fundamental mathematics, including calculus. We encourage students to complete their math requirements prior to starting this program.

Transfer credit

Some of the degree requirements can be transferred from other colleges and universities. Please note that a minimum of 45 credits of the last 75 must be completed at Oregon State (online or on campus) to meet the academic residency requirement. Previously earned credits will need to be reviewed upon admittance into OSU for appropriate articulation. Additional information about transferring credits is available through the Single Course Search tool provided by OSU's Office of Admissions.

Add a minor

Oregon State Ecampus students have the ability to add a minor to their degree program. Oregon State offers a diverse selection of minors online. For example, combine environmental sciences and a business, chemistry, U.S. history, or anthropology minor to create an even more powerful resume fit for today's job market.


Notice: Oregon State University students may now take part in internships anywhere in the United States. Read more about Ecampus’ authorization to operate in your state.

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