University of Helsinki Environmental Change and Global Sustainability Master’s Thesis Guide 2026-2027

The Master’s Programme in Environmental Change and Global Sustainability (ECGS) at the University of Helsinki is a 120 ECTS, two-year interdisciplinary programme built around sustainability science, environmental change and the social dimensions of global sustainability. The thesis is not an isolated final document. It sits inside a programme that deliberately combines research methods, sustainability-science foundations, disciplinary depth and a common Master’s thesis seminar.

This guide uses current University of Helsinki material verified on 25 August 2026, including the 2026-2030 ECGS curriculum that became valid on 1 August 2026. It is a thesis guide, not an admissions guide. Admission eligibility, tuition fees, scholarships, application dates and language-test thresholds are intentionally outside this article.

ECGS has two standard study tracks

The public programme description presents two standard study tracks:

• Environmental Change (EC), oriented toward natural-science approaches to environmental systems; and
• Global Sustainability (GS), oriented toward social-science approaches to sustainability problems, governance, justice and socio-ecological change.

The current 2026-2030 curriculum also contains a Biology subject-teacher route for students who already hold the relevant pedagogic study rights. That is a special curriculum route, not a third ordinary track that should be presented as equivalent to EC and GS for every student.

This distinction matters because ECGS is interfaculty. Depending on the student’s disciplinary module and approved study plan, the programme can lead to a Master of Science, Master of Social Sciences, or Master of Science (Agriculture and Forestry). The Faculty of Biological and Environmental Sciences is the responsible organisation for the programme, with coordination involving the Faculties of Agriculture and Forestry and Social Sciences.

Current 120 ECTS structure

For the standard Environmental Change and Global Sustainability routes, the current degree structure is:

• 30 ECTS ECGS core studies;
• 75 ECTS study-track-specific advanced studies, which include the 30 ECTS Master’s thesis and a 45 ECTS disciplinary module; and
• 15 ECTS elective studies.

The 2026-2030 curriculum places the 5 ECTS Master’s thesis seminar inside the core studies. This seminar is important because students use it to plan research, discuss thesis ideas and present work to peers and guiding teachers. Thesis planning therefore starts before the final manuscript-writing stage.

The thesis course code depends on the standard track:

• ECGS-005 Master’s thesis for Environmental Change;
• ECGS-006 Master’s thesis for Global Sustainability.

Both are 30 ECTS and use the University’s 0-5 grading scale.

What kind of thesis can you do?

Current ECGS guidance describes the thesis as usually based on an empirical research project, followed by critical interpretation of the results in relation to scientific literature. A thesis can also be a theoretical or literature-based study when that design is appropriate to the research question.

For empirical projects, the current curriculum describes four broad phases:

1. design and planning of the study;
2. gathering data, which can involve fieldwork, laboratory work, mathematical modelling or another appropriate source of material;
3. analysing the data, including validation, quality control, statistical analysis, visualisation or other justified analytical procedures; and
4. interpreting and discussing the results in relation to existing research.

That sequence should not be treated as a compulsory method recipe. A Global Sustainability thesis may use qualitative interviews, documents, policy material, survey data or other social-science evidence. An Environmental Change thesis may use field, laboratory, ecological, environmental or modelling data. The research design must follow the question, not the other way around.

A 30 ECTS thesis is roughly four to five months of full-time work

The current 2026-2030 curriculum gives a useful workload benchmark. From project design to completion, the 30 ECTS thesis corresponds to approximately 4.5 months, 800 hours, or 20 weeks at 40 hours per week.

Current curriculum timing also shows how the programme expects students to spread that work across the degree:

• research planning can begin in periods 3-4 of the first year;
• data gathering may take place during the summer after the first year or in periods 1-2 of the second year; and
• data processing and writing can continue during period 3 of the second year.

This is especially useful for field-based, seasonal or partner-based projects. If a project requires summer fieldwork, access to an organisation, interviews with policy actors or time-sensitive environmental observations, the schedule should be built around those constraints before the writing phase begins.

The current page-length guidance is about 20-40 pages

Current ECGS and Faculty guidance describes a 30 ECTS thesis as approximately 20-40 pages and commonly using around 40-50 literature sources. A literature-based thesis will usually require substantially more sources.

Treat these numbers as scope guidance, not a mechanical target. The University explicitly connects total length to the chosen topic. A thesis with complex figures, maps, tables, appendices or detailed methods can be organised differently from a theoretically focused social-science thesis. The correct goal is an analytical, focused and scientifically complete thesis within the 30 ECTS workload.

Do not add pages simply to reach a number. Equally, a very short manuscript still has to demonstrate a defensible research question, scholarly framework, suitable material and method, analysis, results, discussion and scientific writing.

The thesis plan must be approved before the project starts

ECGS is particularly clear about thesis planning. The current curriculum states that the thesis project may not be started before the Master’s thesis plan has been approved.

Under the current Faculty guidance, the plan is signed by:

• the student;
• the responsible person for theses in the degree programme; and
• the supervisor or supervisors.

The plan should define the topic, research question, material, methods, supervision arrangement and realistic schedule. It should also make the student’s independent contribution clear when the thesis sits inside a larger research project.

The current Faculty rule also makes thesis-plan validity operationally important: the plan can be valid for a maximum of nine months under the current framework. If the plan expires before examination, or if the topic, supervisor or circumstances change materially, the plan may need to be updated or reapproved under the current instructions.

This means the plan should not be signed too early just to create a formal record. It should represent a project that is genuinely ready to proceed.

Supervisor requirements

At least one supervisor must be appointed. Under the current Faculty of Biological and Environmental Sciences guidance:

• the chief supervisor must hold a doctoral degree or equivalent qualifications; and
• any additional supervisors must hold at least a Master’s degree.

The supervisor helps define the scope, theories, methods and analytical route, provides feedback and guides the research process. The student remains responsible for doing the research, analysis and writing.

This is important in ECGS because projects may be multidisciplinary. A thesis can be connected to a University research group, a wider research project, or collaboration with a company or organisation. Research-based education is central to the programme, and the University also highlights cooperation with external research and public-sector organisations.

Collaboration does not change the assessment principle: the student’s independent contribution must be clearly demonstrable, and the thesis itself must be independently written.

Referencing: use a consistent system, but do not invent a universal style

Current Faculty guidance requires a consistent system of referencing and says that programme-level instructions provide more detailed guidance. The verified current public evidence for ECGS does not establish one universal citation style such as APA, Harvard or Chicago for every thesis across all modules and degree titles.

That makes the safest rule straightforward:

1. follow current ECGS or module-specific instructions if they specify a system;
2. follow a supervisor-approved disciplinary convention where the programme permits it; and
3. use the chosen system consistently from the first in-text citation to the final reference-list entry.

Do not assume that a Global Sustainability social-science thesis and an Environmental Change natural-science thesis must automatically use the same citation manual unless your current programme instructions say so.

Language of the thesis

ECGS is a multilingual programme. Current programme information allows dissertations in English, Finnish or Swedish.

The language of the degree still matters. Under current University language rules, a student completing an English-language degree in a multilingual programme must complete at least 75% of the studies included in the degree in English and must also write the thesis in English.

The thesis language is recorded through the thesis-plan process. If your degree language is Finnish or Swedish, or your prior-language obligations affect the maturity test, follow the current University instructions rather than inferring the rule from the language of teaching alone.

Sisu and the redesigned E-thesis

Before submitting the final thesis, current University instructions require students to register the thesis and maturity test in Sisu for the relevant academic year.

The final assessed version is then submitted through the redesigned E-thesis system. Once the thesis has been stored for assessment, that submitted version is no longer editable. You receive submission confirmation and can follow the assessment process in the system.

This makes pre-submission quality control essential. Before pressing final submit, check:

• the thesis title and metadata;
• abstract and keywords;
• supervisor information;
• references;
• figures, tables and appendices;
• confidentiality boundaries;
• PDF rendering; and
• whether the uploaded file is truly the final version intended for assessment.

ECGS has a specific examiner exception

Under the current Faculty framework, the responsible person appoints two examiners. The minimum examiner qualification is normally a doctoral degree or equivalent qualifications.

In the Faculty of Biological and Environmental Sciences, a supervisor normally cannot act as an examiner. ECGS is an explicit exception because it is a joint programme: an ECGS supervisor may also act as an examiner for justified reasons.

The current assessment framework separates the assessment areas:

1. thesis objective and research questions;
2. scholarly framework and use of sources;
3. research data and method;
4. presentation of results;
5. discussion and conclusions;
6. thesis as an academic text; and
7. work during the thesis process.

The examiners assess areas 1-6, while the supervisor assesses area 7. The overall thesis receives a grade from 0 to 5. The final approval and grade decision is made by the Dean.

The maturity test is a separate Examinarium examination

Do not copy the maturity-test process from programmes where the thesis abstract itself functions as the maturity test. Under the current Faculty instructions applicable to ECGS, the Master’s maturity test is a separate written examination with essay task or tasks in Examinarium.

The maturity test:

• carries 0 ECTS;
• is assessed pass/fail;
• demonstrates familiarity with the thesis topic; and
• has language requirements that depend on the student’s prior education and degree-language situation.

AI is never allowed in a maturity test. This prohibition is absolute even though current University policy may allow AI tools in other thesis-learning or writing contexts subject to teacher, programme and Faculty restrictions and disclosure requirements.

AI use in the thesis itself

University policy generally permits AI to support learning and writing when the relevant teacher, programme and Faculty rules allow it. The student remains responsible for the accuracy of claims, source use, research integrity and final wording.

If AI is used in a permitted way, follow the current disclosure requirement. Never use AI as a substitute for checking sources, analysing data or making disciplinary judgments that the thesis author must be able to defend.

ECGS submission rounds for 2026-2027

The current timetable applicable under the Faculty guidance gives the following rounds. Completed theses must be submitted by 23:59 Finnish time on the deadline date.

Normal supervision and feedback are not provided in July unless specifically required. If a thesis is submitted after the final June assessment deadline but before the academic year ends, it is assessed according to the first autumn schedule. Plan graduation around the assessment and Dean decision, not only the upload date.

Publicity and confidential material

Master’s theses are public documents. Their abstracts are also public, and abstracts are published in Helda. If you permit open publication of the full thesis, E-thesis handles publication through the University’s repository process.

Confidential information must not appear in the thesis, appendices or abstract. If an ECGS project involves company material, sensitive organisational information, personal data or another restricted dataset, resolve that boundary with the supervisor during research planning. Assessment is based on the public thesis, not on secret background material.

A practical ECGS thesis workflow

A defensible current workflow is:

1. Choose the disciplinary context. Clarify whether the project belongs to EC, GS or the special subject-teacher route and which degree title/module controls the work.
2. Use the thesis seminar early. Turn a broad sustainability problem into an answerable research question and workable design.
3. Find appropriate supervision. Match the thesis question with methodological and disciplinary expertise.
4. Build the thesis plan. Define question, theory, material, methods, ethics, independent contribution, schedule and supervision.
5. Secure formal approval before starting the thesis project. Do not treat approval as an after-the-fact administrative step.
6. Collect or assemble the material. For empirical work, this may involve field/lab data, modelling, interviews, documents or another justified source.
7. Analyse and write within the 30 ECTS scope. Use the 20-40 page guidance as a scale check rather than a target to pad toward.
8. Use one consistent referencing system. Follow current module/programme/supervisor instructions instead of assuming a universal style.
9. Complete the separate maturity test. Register correctly and remember that AI is prohibited in it.
10. Register in Sisu and submit the final PDF through E-thesis. Confirm every element before upload because the assessed file is not editable afterward.
11. Allow time for assessment. Two examiners, the supervisor’s process assessment and the Dean decision all occur after submission.

Final checklist

Before final submission, confirm that:

• your thesis plan was approved and is still valid;
• the project is correctly connected to your ECGS track/module and degree title;
• your independent contribution is clear;
• your chief supervisor meets the current qualification requirement;
• your research question, theory, material and method align;
• the manuscript is analytical and focused within the 30 ECTS scope;
• the approximate 20-40 page guidance has been interpreted sensibly for the topic;
• your reference system is consistent and follows current programme/supervisor guidance;
• the thesis and maturity test are registered correctly in Sisu;
• the separate Examinarium maturity test has been completed under the current rules;
• no AI has been used in the maturity test;
• confidential information is excluded from the assessed thesis and appendices;
• the E-thesis PDF is the exact final version; and
• your deadline is one of the current 2026-2027 assessment rounds.

University, programme, Faculty and supervisor instructions always take priority if a more specific or newer requirement applies to your project.