Build a named environmental case study
Organise a school-selected case study around place, causes, impacts, strategies, evidence and reasoned evaluation.
Exam scope and assessment notes
Original StudyForA teaching and practice, not Cambridge-authored questions, mark schemes or official grades. Cambridge expects candidates to study all eight topics, carry out investigative work and learn teacher-selected case studies. This course does not replace a centre's named case-study examples, current local environmental data, supervised fieldwork or the candidate's own investigation. Practice datasets are illustrative, not observations from a real place. No official assessment or certification is provided. The examples and practice datasets in these lessons are fictional and formative; learners must add their centre's verified case studies and current local evidence.
Before you begin
- Cambridge recommends prior environmental/science study equivalent to IGCSE or O Level. This is an AS-only qualification; use the exam-year syllabus and confirm centre entry details.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
What makes environmental evidence useful?
What you will learn
- Use a specific location and dated, traceable sources
- Connect management measures to a defined environmental issue
- Evaluate outcomes, costs and stakeholders using evidence
Make the case study concrete
Cambridge asks teachers to choose examples for case studies at the ends of Topics 2–8. Record the location, environmental processes, affected groups, management measures and evidence of outcomes.
Build a case file with a map or location description, key dates, at least two credible sources and quantitative indicators. Check whether measures are comparable and whether they support the claim.
Evaluate results, not labels
Explain how a strategy is intended to work, what was implemented, who benefits or bears costs and what the evidence shows. Include limitations and alternative explanations.
Examples and data change. Candidates and centres must choose current named examples. This course supplies a reusable framework, not a complete local case-study portfolio.
Sources for this lesson
Pause and explain
What turns a strategy description into an evaluation?
Worked example
A teacher selects a named river-basin water-security case. Suggest an evidence-table structure without inventing facts.
Show the worked solution
- Record issue, place and groups affected.
- List actions and dates with sources.
- Track outcome, cost and uncertainty separately.
Answer Use columns for issue and place, groups affected, strategy and date, source, measured outcome, cost or trade-off and uncertainty. Leave unknown values blank until verified; do not fill gaps with invented estimates.
From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Two sources give different population totals for a case-study area. How should the learner reconcile them?
Give me a hint
Compare date, definition and geographic coverage.
Compare my reasoning
- Identify the relevant data, place or process in the prompt.
- Apply use a specific location and dated, traceable sources to the stated context.
- Explain the inference and one limitation or trade-off.
Record each source, date and population definition. Check boundaries and collection methods; choose the estimate most suitable to the question and explain the discrepancy. Do not combine incompatible figures.
Look for these in your work
- Use a specific location and dated, traceable sources
- Uses relevant evidence and explains the environmental mechanism
- Distinguishes observation, inference and limitation
A protected-area case study reports no species trends. What evidence would strengthen the evaluation?
Give me a hint
Measure ecological outcomes and management.
Compare my reasoning
- Identify the relevant data, place or process in the prompt.
- Apply connect management measures to a defined environmental issue to the stated context.
- Explain the inference and one limitation or trade-off.
Track relevant species abundance or habitat condition over time, alongside enforcement and community outcomes. A suitable comparison can help, while recognising natural variation and outside pressures.
Look for these in your work
- Connect management measures to a defined environmental issue
- Uses relevant evidence and explains the environmental mechanism
- Distinguishes observation, inference and limitation
A project reports new jobs but no distribution or environmental outcomes. What should the evaluation add?
Give me a hint
Ask who benefited, what changed and how it was measured.
Compare my reasoning
- Identify the relevant data, place or process in the prompt.
- Apply evaluate outcomes, costs and stakeholders using evidence to the stated context.
- Explain the inference and one limitation or trade-off.
Disaggregate jobs by group, location and duration, then measure environmental effects and trade-offs. Compare project claims with independent evidence; a job total is not a complete social or environmental result.
Look for these in your work
- Evaluate outcomes, costs and stakeholders using evidence
- Uses relevant evidence and explains the environmental mechanism
- Distinguishes observation, inference and limitation
Common mistakes
- Memorising generic facts without a named place
- Using figures without date or source
- Calling a strategy successful because it was introduced
What can you explain now?
What turns a strategy description into an evaluation?
Compare with the explanation
Evidence about results, costs, affected groups and limitations
Implementation alone does not prove an outcome.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
Why does a case study need dated sources and outcome evidence, not just strategy names?
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.