Environmental Science at McMaster
Not directly. At McMaster University you apply to Environmental and Earth Sciences Gateway, then choose environmental science at the end of first year.
The program you actually apply to
Environmental and Earth Sciences Gateway
83–87%OUAC MEECo-op available
Prerequisites
- English 4U
- 1 of Advanced Functions 4U, Calculus & Vectors 4U
- 1 of Biology 4U, Chemistry 4U
- 1 of Advanced Functions 4U, Calculus & Vectors 4U, Biology 4U, Chemistry 4U, Physics 4U
- Applicants without Calculus & Vectors 4U will be required to take an equivalent Calculus course in Level I.
When you choose environmental science
At the end of first year.
What to watch for
Level 2 options include Honours Environmental Sciences and Honours Biodiversity & Environmental Sciences. If you want the policy/society side rather than lab science, that is Environment & Society through Social Sciences I — a BA, not a BSc, and a completely different OUAC choice.
The same application also gets you to
Environmental and Earth Sciences Gateway is the entry point for 1 other major at McMaster. 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%
- Carletonvia Science - Honours (CT)78%
- Guelphvia Bachelor of Science in Environmental Sciences (BS Env) (GEA)75–80%
- Lakeheadvia Environmental Management (AO)70%
- LaurentianDirect entry70%
- Laurier (Waterloo)Direct entry73–77%
- 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. McMaster’s page. Faculties restructure — confirm before you apply.