4 programs, side by side

Full	York Environmental Science (BSc) - Faculty of Environmental & Urban Change OUAC YBS ☆ Add to planRemove	Lakehead Water Science (Thunder Bay) OUAC AAR ☆ Add to planRemove	Carleton Science – Major (4 years) OUAC CK ☆ Add to planRemove	U of T (Scarborough) Physical & Environmental Sciences - Health Sciences Stream (regular and co-op) OUAC TXH ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	80–87%“Low to mid 80s”	70%	74–76%	73–80%“Mid-70s (regular), high 70s (co-op)”
Required coursesforced into your top 6 — options are the row below	ENG4U	ENG4U	MHF4USBI4USPH4U	ENG4UMCV4UMHF4U
Choose one ofany of these satisfies it	—	3 of MCV4U, MDM4U, MHF4U, SBI4U, SCH4U, SES4U, SPH4U	two of MCV4U, SCH4U, SES4U	—
Prerequisitesas published	Ontario Secondary School Diploma (OSSD) ENG4U 4U Math 4U Science three additional 4U or 4M courses +5 more on the program page	ENG4U 3 of MCV4U, MDM4U, MHF4U, SBI4U, SCH4U, SES4U, SPH4U Alternative Offers If you do not meet the admission requirements for your program of choice but do meet Lakehead University's general admission requirements, you will automatically be considered for an alternate program.	Biochemistry, Biology, Earth Sciences, Environmental Science, Neuroscience and Mental Health, and Physics. MHF4U 2 of MCV4U, SBI4U, SCH4U, SES4U or SPH4U 3 best 4U/M courses For all programs in Physics, SPH4U is strongly recommended. +3 more on the program page	ENG4U MCV4U MHF4 Science prerequisites (SPH4U or SBI4U) for specific disciplines are also required. SCH4U is recommended for specific disciplines. See U of T Scarborough's viewbook +1 more on the program page
More than marks?supplementary application	Marks only	Marks only	Marks only	Marks only
Co-op	Available	No	No	Available
Degree	—	—	—	—
First-year intakewhere published	25	—	—	340
What you study	Biological SciencesPhysical Geography	Biological SciencesEnvironmental StudiesOthers in Physical SciencesOthers in Technology	Environmental StudiesGeologyMolecular Biology, BiochemistryOthers in Physical Sciences	AstronomyChemistryEnvironmental StudiesGeology
What it is	Environmental Science combines the study of living systems and Earth's physical processes — like climate, water, and soil — to understand how natural environments work and respond to human activity. Unlike a program focused only on biology or only on geology, this degree integrates both to tackle real-world environmental problems. It suits students interested in conservation, resource management, or environmental consulting who want a broad scientific foundation rather than specialization in a single discipline.	Water Science combines biology, chemistry, physics, and geography to study how water systems work and how to protect them. You'll examine lakes, rivers, and groundwater from ecological and physical angles rather than focusing only on engineering solutions. This program suits students interested in environmental problems who want a science-based approach grounded in both living systems and earth processes.	A Science Major is a four-year degree where you study one science subject deeply — such as physics, biology, geology, or environmental science — along with complementary courses in math and other sciences. It differs from a specialized honours program in that you focus on breadth within your chosen field rather than pursuing a single narrow specialization. This program suits students who want solid grounding in a science discipline without committing to professional training like engineering or medicine.	You study physical sciences — chemistry, physics, geology, and environmental topics — with a focus on how they connect to human health and the living world. This stream emphasizes the intersection between earth and life sciences rather than pure physics or chemistry alone. The co-op option lets you do paid work terms at relevant employers alongside your degree. It suits students interested in environmental health, toxicology, or science careers that bridge the natural world and wellness.
The door tomajors you reach through it	environmental science	Applied to directly	Applied to directly	health sciences
Entrance awardsat this campus, by average	29 published, 4 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 80%See them	16 published, 9 with no applicationfrom 75%See them	4 published, 4 with no applicationfrom 85%See them
Source	York University on OUInfo	Lakehead University on OUInfo	Carleton University on OUInfo	University of Toronto — Scarborough on OUInfo

Ranges are what each university publishes, not guaranteed cutoffs, and limited-enrolment programs often admit above them. Confirm anything you are about to act on with the university; each column links to its source.