Environmental Science at Carleton
Not directly. At Carleton University you apply to Science - Honours (CT), then choose environmental science on the OUAC application, as your major inside the Bachelor of Science (CT, 78%). Carleton also offers a Science Gateway — Life Sciences or Physical Sciences — for students who want a BSc but have not picked a major.
The program you actually apply to
Science – Honours (4 years)
78%OUAC CTCo-op available
Prerequisites
- Honours in Biochemistry, Bioinformatics, Biology, Biotechnology, Chemistry,
- Linguistics, Neuroscience and Mental Health, Psycholinguistics and Communications Differences, Psychology, and Gateway (Physical Sciences and Life Sciences):
- Advanced Functions (MHF4U)
- Two credits from Biology (SBI4U), Chemistry (SCH4U), Earth and Space Science (SES4U), or Physics (SPH4U)
- 3 best 4U/M courses
- Calculus (MCV4U) strongly recommended
When you choose environmental science
On the OUAC application, as your major inside the Bachelor of Science (CT, 78%). Carleton also offers a Science Gateway — Life Sciences or Physical Sciences — for students who want a BSc but have not picked a major.
What to watch for
Environmental Science is a BSc major under CT. Environmental and Climate Change Studies is the BA counterpart under CH, and Environmental Engineering (CEE) is a separate engineering degree. Carleton's Honours BSc is a single OUAC code, CT, at 78%, covering 17 majors; you name the major on the application. CS is the 3-year non-honours BSc and CK is Science - Major. Undecided science applicants can choose the Life Sciences or Physical Sciences Gateway.
The same application also gets you to
Science – Honours (4 years) is the entry point for 7 other majors at Carleton. You are not choosing between these at application time.
Environmental Science at the other campuses
Compare the entry programs side by side →- AlgomaDirect entry65%
- Brockvia Sciences (BI)73–77%
- Guelphvia Bachelor of Science in Environmental Sciences (BS Env) (GEA)75–80%
- Lakeheadvia Environmental Management (AO)70%
- LaurentianDirect entry70%
- Laurier (Waterloo)Direct entry73–77%
- McMastervia Environmental and Earth Sciences Gateway83–87%
- Nipissingvia Bachelor of Science (PS)70%
- Ontario Techvia Environmental Biology (DSL)70–73%
- Queen'svia Science – Earth and Environmental Science (QSE)80–87%
- TMUDirect entry70–75%
- TrentDirect entry75%
- U of T (Mississauga)via Chemical & Physical Sciences73–80%
- U of T (Scarborough)via Physical & Environmental Sciences (OUAC TSP)73–80%
- U of T (St. George)via Life Sciences (including Psychology)83–90%
- WaterlooDirect entry80–83%
- Westernvia Science (ES)80–87%
- WindsorDirect entry70%
- YorkDirect entry80–87%
Entry routes were researched against each university’s own program pages in 2026-08-16. Carleton’s page. Faculties restructure — confirm before you apply.