Studying Environmental Science in Ontario

Western University

Apply to Science (ES)

You choose environmental science at the end of first year, during Intent to Register in March.

There is no first-year program called 'Environmental Science' — the Honours Specialization, Specialization, Major and Minor in Environmental Science are modules in the Department of Earth Sciences, Faculty of Science (ES), alongside Environmental Geoscience. Two different faculties serve this field and they are separate OUAC choices: if you are more interested in the human/policy side (Environment and Health, Climate Change and Society, Urban Development), that is Geography and Environment in Social Science (EO). Decide before you list codes, or list both.

Queen's University

Apply to Science – Earth and Environmental Science (QSE)

You choose environmental science during Plan Selection in May at the end of first year.

Environmental Science (BSc) and Environmental Studies (BA) are two different plans — the BA route is entered through Arts (QA), NOT this science pathway. Both confirmed in the School of Environmental Studies listing, alongside Environmental Biology, Environmental Chemistry, Environmental Geology, Environmental Life Sciences and Environmental Toxicology, all selected after first year. CODE CAVEAT: Queen's requirements table still prints Science (QS); confirm QSE on OUAC.

McMaster University

Apply to Environmental and Earth Sciences Gateway

You choose environmental science at the end of first year.

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.

University of Toronto — St. George

Apply to Life Sciences (including Psychology)

You choose environmental science at the end of first year.

Environmental Science is an HBSc under Life Sciences requiring SBI4U, SCH4U and MCV4U. U of T confirms Environmental Studies and Environmental Geography are different programs, HBA under Social Sciences (tax) with only ENG4U required — mixing these up is the most common environment-stream mistake.

University of Toronto — Mississauga

Apply to Chemical & Physical Sciences

You choose environmental science after first year (4.0 credits).

The HBSc versions (Environmental Science, Environmental Geosciences) are under Chemical & Physical Sciences, but the HBA versions — Environmental Management, Environmental Law and Policy, Sustainability — are under Social Sciences (TMS). Pick the code that matches the degree you want.

University of Toronto — Scarborough

Apply to Physical & Environmental Sciences (OUAC TSP)

You choose environmental science end of first year, on ACORN.

Entry point is TSP (TXH for the Health Sciences stream), missing from this dataset. Requires Grade 12 Biology, Advanced Functions and Calculus & Vectors, mid 70s. Careful: Environmental Studies is a different program — an HBA that applies under Social Sciences & Humanities (TUD) with English as the only prerequisite.

University of Guelph

Apply to Bachelor of Science in Environmental Sciences (BS Env) (GEA)

You choose environmental science on the application, among the Environmental Sciences majors.

Environmental Sciences is its own degree at Guelph rather than a major inside the BSc, and it publishes a lower range (75-80%) than the BSc. Majors include Ecology, Environmental Economics and Policy, and Earth Observation and Geographic Information Science. Environmental Governance is a BA instead, and Environmental Management is a Bio-Resource Management degree, GBC.

Carleton University

Apply to Science - Honours (CT)

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.

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.

Brock University

Apply to Sciences (BI)

You choose environmental science after exploring first-year courses inside the Faculty of Mathematics and Science.

Brock has no standalone environmental science code. Sciences (BI, mid-70s) is the general science door; Earth Sciences (BX) and Geography (BSc) (BO) are the nearest named degrees.

Ontario Tech University

Apply to Environmental Biology (DSL)

You choose environmental science on the application — Ontario Tech's environmental science is Environmental Biology, or Sustainability.

Ontario Tech has no code called Environmental Science. Environmental Biology (DSL, low-70s; DLC co-op) is the science route and Sustainability (DTB, mid-70s) the policy one.

Lakehead University

Apply to Environmental Management (AO)

You choose environmental science on the application — Lakehead spreads environmental science across several codes.

Lakehead has no single environmental science code. Environmental Management (AO, Thunder Bay, co-op) and Environmental Sustainability (AP, Orillia, co-op) are the dedicated degrees, both 70%; Biology (AD), Earth Science (AI) and Geography and the Environment (AU) each list Environmental Science as a stream. Water Science (AAR) and Forestry (AQ) are related. Lakehead has two campuses and many programmes run at only one: check the campus in the programme name before you apply, because Thunder Bay and Orillia are 1,400 km apart.

Nipissing University

Apply to Bachelor of Science (PS)

You choose environmental science on the application or after — the Bachelor of Science (PS, 70% minimum) is a genuinely undeclared door, and you choose a major from the seven inside it.

Environmental Science at Nipissing is chosen inside the Bachelor of Science, alongside Environmental Biology and Technology and Environmental and Physical Geography; Environmental Geography is the BA version inside PA. Nipissing admits to the Bachelor of Science as one OUAC code, PS, at a 70% minimum; the seven science majors are chosen inside it. Liberal Science (PLB) is the non-specialised version.

Trent University — Durham GTA

Apply to not offered at Trent Durham

Not at Durham; Environmental Science/Studies (RES) is at the Peterborough campus.