Jake EricIntroduction to Geography Case Studies
If you’re preparing for IB or IGCSE Geography, you’ve probably realized something quickly — case studies aren’t just optional extras. They’re essential. Examiners love them because they show you can link theory to the real world.
But here’s the good news: you don’t need to memorize hundreds. You just need a solid set of go-to case studies that you can apply across multiple topics. In this guide, we’ll simplify 11 key geography case studies that appear again and again. Each is broken into causes, impacts, and management so you can remember them under exam pressure.
👉 If you want broader study strategies, check out our exam success guide.
Why Case Studies Matter in IB & IGCSE Geography
Building Exam Confidence with Case Studies
Let’s face it: exam questions can feel overwhelming. But when you can bring in a real-life example, you instantly boost your answer. Instead of saying “flooding causes displacement”, you can write “the 2004 Bangladesh floods left over 30 million people homeless.” That’s the difference between a Level 5 answer and a vague one.
For more subject-specific advice, see our resources on humanities, languages, mathematics, and sciences.
Linking Case Studies to Real-World Geography
Geography is all around us — in disasters, migration, cities, tourism, and even your food. Case studies make your learning come alive because they show how people, places, and environments interact.
Case Study 1: River Flooding – Bangladesh
Flooding in Bangladesh is the classic case study for rivers and hazards.
Causes of Flooding
- Monsoon rains combined with Himalayan snowmelt.
- Flat topography.
- Deforestation increasing surface runoff.
Impacts
- 30 million displaced.
- Crops destroyed, leading to food shortages.
- Waterborne diseases spread.
Management
- Flood shelters built.
- Early warning systems introduced.
- Long-term embankments for protection.
👉 For revision tricks, visit our memory strategies page.
Case Study 2: Earthquake – Haiti 2010
Causes
- Shallow focus quake on Caribbean-North American plate boundary.
- Magnitude 7.0.
Impacts
- 220,000 deaths, 300,000 injured.
- 1.5 million homeless.
- GDP loss of 120% of national income.
Responses
- International aid poured in.
- Slow rebuilding due to poor governance.
👉 For more on natural hazards, see our science study guides.
Case Study 3: Volcano – Montserrat 1997
Impacts
- Plymouth (capital) destroyed.
- Farmland ruined by ash.
- Tourism collapsed.
Responses
- Long-term relocation programs.
- Monitoring systems introduced.
- Aid provided by the UK government.
👉 For diagrams to help memory, explore our revision tools.
Case Study 4: Drought – The Sahel
Causes
- Overgrazing leading to desertification.
- Climate change and irregular rainfall.
Human Consequences
- Widespread famine.
- Migration into overcrowded cities.
Management
- Drought-resistant crops.
- Water conservation.
- NGO support with food aid.
Case Study 5: Coastal Erosion – Holderness Coast, UK
Processes
- Boulder clay erodes quickly.
- Strong waves undercut cliffs.
Impacts
- Villages lost.
- Farmland eroded.
Management
- Sea walls, groynes, and managed retreat.
👉 Learn more about advanced geography guides.
Case Study 6: Deforestation – The Amazon Rainforest
Causes
- Logging, cattle ranching, and soybean farming.
- Infrastructure like the Trans-Amazonian Highway.
Impacts
- Loss of biodiversity.
- Indigenous displacement.
- Contribution to global warming.
Management
- Ecotourism initiatives.
- Protected reserves.
- Sustainable timber laws.
👉 See our biology resources for links between ecosystems and deforestation.
Case Study 7: Tourism – Kenya
Positives
- Income from safaris.
- National parks preserved.
Negatives
- Damage from vehicles and litter.
- Cultural disruption.
Sustainability
- Eco-lodges.
- Limiting visitor numbers.
👉 Explore more in our humanities section.
Case Study 8: Urbanization – Lagos, Nigeria
Causes
- Job opportunities in industry and oil sector.
- Rural-urban migration.
Challenges
- Overcrowded housing.
- Poor sanitation.
- Unemployment.
Management
- Urban planning.
- Improved public transport.
👉 If urban issues fascinate you, dive into our sociology resources.
Case Study 9: Migration – Mexico to USA
Push & Pull Factors
- Poverty in Mexico.
- Jobs in the USA.
Impacts
- Brain drain in Mexico.
- Pressure on US healthcare and housing.
Policies
- Border patrols and work visas.
Case Study 10: Energy – Three Gorges Dam, China
Reasons
- Hydroelectric power.
- Flood control.
Benefits
- Renewable energy.
- Improved navigation.
Negatives
- Millions displaced.
- Habitat loss.
👉 More on global energy strategies here.
Case Study 11: Food Production – Rice Farming in the Ganges Valley
Inputs
- Fertile soils and abundant labor.
Processes
- Irrigation systems and manual farming.
Benefits & Challenges
- Food security.
- Risk of flooding.
👉 For more agriculture topics, see our case studies hub.
Tips to Remember Case Studies
Use Acronyms
Bangladesh floods? Think HWM (Heavy rain, Weak infrastructure, Monsoon).
Add Diagrams
Sketching rivers, tectonic boundaries, or coasts alongside your case study cements memory.
👉 More strategies in our last-minute study tips.
How to Write Case Studies in Exams
PEEL Technique
- Point: “Flooding leads to displacement.”
- Evidence: “In Bangladesh 2004, 30 million displaced.”
- Explain: “This caused widespread poverty.”
- Link: “This shows how flooding impacts development.”
Mistakes to Avoid
- Listing without explanation.
- Forgetting key dates and places.
👉 More detailed exam prep strategies here.
Conclusion
Geography case studies are your exam goldmine. With just a handful of well-memorized examples, you can answer nearly any question with confidence. Use memory tricks, diagrams, and the PEEL method to make your answers stand out.
FAQs
Q1: How many case studies do I need for IGCSE Geography?
At least two per topic — e.g., two for hazards, two for population.
Q2: Do I need exact statistics?
Yes — numbers, dates, and locations give examiners confidence in your knowledge.
Q3: Which case studies appear most often?
Bangladesh floods, Haiti earthquake, Amazon rainforest, Lagos urbanization.
Q4: Can I reuse case studies for multiple topics?
Yes — Amazon can cover both deforestation and sustainable management.
Q5: What’s the fastest way to revise?
Flashcards + acronyms + diagrams.
Q6: Should I always include diagrams?
They aren’t compulsory but add clarity.
Q7: Where can I find more resources?
Check out MadTribe IB Academy’s study resources.