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Master of Environmental Sciences

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  2. Programs

Degree

  • MES (Master of Environmental Sciences)

Program Type

  • Coursework

Delivery

  • On-campus

Entry Terms & Deadlines

  • Domestic:

    • Fall (September): April 30
  • International:

    • Fall (September): March 20

Duration

  • Full Time: 24 months
  • Part Time: 48 months

Admission Average

B- (70% - 72%)**Additional Requirements
Program Structure

Advance your career in the environmental sector.

Gain state-of-the-art knowledge of technical and scientific advances in environmental science, environmental policy, and sustainability. Learn from world-renowned faculty focused on earth's critical zones - air, land and water - to advance your career in industry, government or the not-for-profit sector.

The course-based Master of Environmental Sciences program is offered through our School of Environmental Sciences.

Applied and practical experience

Expand your skillset and hands-on knowledge through course options that emphasize field and lab-based instruction.

Course-based options

This professionally oriented master’s can be completed through eight courses or six courses + a research project.

World-class faculty

Tap into the knowledge, expertise and research of the 30+ faculty in the School Environmental Sciences.

Gain research skills

Experience research first-hand with a faculty supervisor in the research project study option, through critical analysis and interpretation of data and/or generation of new knowledge.

Complete in 1 year

Full-time students can complete the program in one year (or three semesters) – getting you back into the workforce quickly.

Upgrade your credentials

Update your theoretical and applied knowledge of current environmental science issues and solutions, while enhancing your communication and critical thinking skills.

Contact Admissions
Cost of Tuition/Living
Program Brochure
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More information on courses and admission requirements can be found here.

MES Graduate Calendar
  • Six (6) courses + a research project*
  • Eight (8) courses

In both cases, the program can be completed in 12 months or less. Most students finish the program in one year or three semesters.

*In the courses + research project option, your research project can be part of your current job or could be with an organization that you want to work with

Hear from Professors and Alumni

Joseph Langlois holding a snake and smiling

I chose the University of Guelph’s Master in Environmental Science program primarily due to the diverse range of courses it offers. This variety, combined with the flexible course scheduling, has allowed me to complete my studies at a pace that suits me best. Many of my courses involve field trips to apply techniques and concepts learned in class, such as the trip we took to the credit river as part of Stressors in the Great Lakes course.

Joseph Langlois, AlumniMaster of Environmental SciencesHear more from Joseph
Jesse Popp

Be prepared for some incredible experiences, like no other, that reach beyond the conventional classroom while embracing multiple ways of knowing and seeing the world to support reconciliation and truly transformation of environmental science.

Dr. Jesse Popp, FacultyChair in Indigenous Environmental ScienceQ&A with Dr. Jesse Popp
Neil smiles in maroon sweater and grey shirt.

I study the abundance and distribution of critters and plants in ecosystems. I am particularly fascinated with fresh water and marine ecosystems. They are incredibly complex, incredibly diverse and the fact that they persist in the face of environmental change that's what really fascinates me.

Dr. Neil Rooney, FacultyProfessor, School of Environmental SciencesHear more from Dr. Rooney
James smiles in purple dress shirt and dark glasses

I’m environment chemist and I enjoy finding new things that we didn't or couldn't know before about our molecular environment. I work with a tool called nuclear magnetic resonance or NMR for short and this tool allows us to study molecules in their natural environment and soil and groundwater in a way that other methods don't really allow for.

Dr. James Longstaffe, FacultyProfessor, School of Environmental SciencesHear more from Dr. Longstaffe
Susan smiling in colourful scarf and dark glasses

I think for me it's not just it's not an academic question or issues that draw me. I think I have to feel almost spiritually or emotionally connected to the area where I'm working and the problems that I'm trying to solve so if it's working with First Nations or it's working in certain kinds of environment I have to feel really excited about it or it's not going to go.

Dr. Susan Glasauer, FacultyProfessor, School of Environmental SciencesHear more from Dr. Glasauer
Close up of Andrew smiling and holding a large insect

I am interested in the evolution of the flower flies and other related groups of Diptera. I believe that flower flies represent an ideal model system to study the evolution of pollination behaviours in insects.

Dr. Andrew Young, FacultyProfessor, School of Environmental SciencesHear more from Dr. Young
Ryan smiles in dark button up shirt

My research relates to environmental toxicology, so I look at the impact of chemicals that are used in various aspects of society whether it's on agriculture or industry or commercially and their potential fate. How they make their way into the environment, what happens to them when they get in the environment and what effect they might have on biota, on different species in the environment.

Dr. Ryan Prosser, FacultyProfessor, School of Environmental SciencesHear more from Dr. Prosser
Thomas in black baseball hat and t-shirt stands in front of green tree branches

Most of the global population still relies on plant-based medicines as their primary medical intervention. This puts an enormous and unsustainable pressure on the largely wild-harvested plants. Bringing these crops into controlled environment production will improve the quality, consistency, and safety of these medical commodities while also relieving the pressure on wild populations.

Dr. Thomas Graham, FacultyProfessor, School of Environmental SciencesHear more about Dr. Graham

How to Apply

You apply directly online at Applying to Guelph, and a faculty advisor is not required for this course-based program. All applications will be reviewed by the MES Program Committee and will be evaluated based on:

  • Academic performance in a relevant field of study*
  • Minimum B admission average - Calculating Your Admission Average
  • Two (2) referee assessments
  • A statement of interest in the program and/or career goals
  • Work experience in appropriate and related fields

*You are still eligible to apply if you have an honours bachelor's degree in an unrelated field of study but have taken courses in related areas and/or gained relevant work experience since completing the degree.

More details on the U of G graduate program application process here.

  • This program is most suitable for those with an honours (4 year) undergraduate degree in science and for those currently employed in the environmental sector who are seeking to upgrade skills and knowledge.
  • Applicants for admission to this program must meet the admission requirement of a baccalaureate in an honours program (or the equivalent) in a relevant field of study from a recognized university or college with an average standing of at least a 'B' (70%) average.
  • A faculty advisor is not required to apply for this course-based program
  • Undergraduate upgrading prior to applying may be necessary to ensure sufficient background.
  • Domestic applications are due by April 30, 2027 (for September/Fall entry)
  • International applications are due by March 20, 2027 (for September/Fall entry)*

*We encourage international applicants to apply well in advance of the posted deadline to allow sufficient time to arrange for any necessary documentation i.e., transcripts.

  • Review the U of G Graduate Studies' uploading documents information for instructions on providing required supporting documents to complete your application.
  • Not sure what your “admission average” is? Here’s more details on how to calculate it: Calculating Your Admission Average | Graduate & Postdoctoral Studies (uoguelph.ca)
  • International applicants: please use this grade equivalency guide to compare your academic credentials and determine the grade equivalency needed. Additional information available on the International Applicants page.
  • If your first language is not English, you will be required to submit the results of a standardized language test. Please refer to the Office of Graduate Studies website for the required English Language Proficiency acceptable tests and required scores.
  • This program is predominantly a self-funded professional program. As such, students need to be prepared to cover the full costs of the program.
  • There’s lots of helpful information available on the U of G Graduate and Postdoctoral Studies FAQ webpage.

Additional Environmental Science Options

You may also be interested in Environmental Science (Thesis-based).

OAC Grad Studies Viewbook

Contact

For questions on applying and admissions, contact:

School of Environmental Sciences
ses.gradsec@uoguelph.ca
519-824-4120, Ext. 53937

For questions about the MES program, contact:

Kim Bolton, MES Program Advisor
School of Environmental Sciences
kbolton@uoguelph.ca

Apply Now
I have always had a deep connection with nature and loved learning about it in my free time. After my undergraduate degree I wanted to become involved in environmental science, but I wasn’t sure about doing a thesis-based masters. Luckily, I found out about the Master of Environmental Science (MES) degree at the University of Guelph, which is a course based masters, but allows for some research if you are inclined to do so.
Bradley HowieMES Student
Hear more from Bradley