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    Yale University

    Master of Environmental Science (M.E.Sc.)

    Last verified against the official program page on .

    New Haven, USMEScIn-person2 years
    STEM-OPT
    $111,920.00
    Tuition
    over 24mo
    48
    Credits

    Master of Environmental Science (M.E.Sc.) at Yale University is a 48-credit, 2-year, in-person MESc program based in New Haven, US. Tuition is $111,920 and the program is STEM-OPT eligible for international students.

    About the program

    Two-year research-oriented program providing formalized training in the philosophy and practice of science through key courses and extended individualized research on environmental issues, culminating in a publication-ready master's thesis.

    Focus: research
    Part-time option

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    Admissions

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    Deadlines

    Fall 2027
    Dec 1, 2026

    Standardized tests

    GRE
    optional
    Min The submission of GRE, GMAT, or LSAT scores is optional at this time.
    TOEFL
    required
    Min at least a 100 on the iBT version of the TOEFL or a 7.0 on the IELTS examination (minimum of 6.5 in each section)
    IELTS
    required
    Min at least a 100 on the iBT version of the TOEFL or a 7.0 on the IELTS examination (minimum of 6.5 in each section)

    After the program

    Post-study work rights

    12 months OPT (US), potential 24 months STEM OPT extension

    $18,900.00
    Annual living cost

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    Prerequisites

    Specific coursework this program expects you to have completed: calculus, linear algebra, programming, statistics, and subject-specific prerequisites where applicable.

    Recommendations

    Exact count of letters required, whether academic vs professional references are preferred, and any program-specific guidance on who to ask.

    Essays

    Number of essays required (statement of purpose, personal statement, diversity statement), prompts where the program publishes them, and whether supplemental essays are optional or mandatory.

    Contact

    Direct email and phone for the admissions office handling this program, plus a link to the program-specific inquiry page where available.

    Frequently asked questions

    How much does Master of Environmental Science (M.E.Sc.) at Yale University cost?
    The total estimated tuition for Master of Environmental Science (M.E.Sc.) at Yale University is $111,920 across 48 required credits.
    Is Master of Environmental Science (M.E.Sc.) at Yale University online or in-person?
    Master of Environmental Science (M.E.Sc.) at Yale University is offered in-person.
    How long does Master of Environmental Science (M.E.Sc.) at Yale University take to complete?
    Master of Environmental Science (M.E.Sc.) at Yale University is structured around 2 years and 48 credits.
    Is Master of Environmental Science (M.E.Sc.) at Yale University STEM-OPT eligible?
    Yes - Master of Environmental Science (M.E.Sc.) at Yale University is STEM-OPT designated, allowing international graduates to extend their post-completion OPT for up to 36 months total.
    What work-permit options follow Master of Environmental Science (M.E.Sc.) at Yale University?
    Post-completion work rights for Master of Environmental Science (M.E.Sc.) at Yale University: 12 months OPT (US), potential 24 months STEM OPT extension