IB Geography HL — Resource stewardship possibilities

Key Idea: Topic 3.3 is about how we can use the planet's resources more responsibly — and whether population growth will outstrip what those resources can give. It pulls together two ideas: 3.3.1 — stewardship & the circular economy: resource stewardship means managing resources so they last for future generations. The main tool is the circular economy — reuse, repair and recycle to keep materials in use, replacing the wasteful linear 'take, make, dispose' model. 3.3.2 — population-resource models: the classic debate between Malthus (a pessimist — population outgrows food, causing crisis) and Boserup (an optimist — population pressure drives innovation that grows more food), and what makes resource use sustainable. This is core content, examined on Paper 2 — a data-response read off an infographic or a population/food graph, a short structured Explain, and it can feed the extended-response essay.

♻️ 3.3.1 — Stewardship & the circular economy

Resource stewardship treats people as guardians of resources, not just consumers. Its main tool is the circular economy, which loops materials back round — make to use to reuse/repair/recycle — so far less is wasted. The skill examiners test is reading an infographic (often sustainable fashion), then describing what the figures show and explaining the features, advantages or difficulties of going circular.

Tip: An Explain on the circular economy only scores if you give the mechanism — e.g. recycling materials → new products need fewer raw resources → less mining and waste. Naming a feature alone earns half the marks. Reach for a named scheme (the Netherlands' 2050 circular target, Singapore's recycled NEWater) to develop the point.

📊 3.3.2 — Population, resources & sustainability

As population grows it needs more resources — food, water, energy and land. Two thinkers disagreed on what happens next, and the past papers in this micro mostly ask about Boserup's optimistic stance, so be ready to explain how more people leads to more food. A line graph of population vs food production is the classic stimulus — because food has risen faster than population, the data is strong evidence for Boserup.

On a population-vs-food graph, food production climbs above population — so food per person rises over time (the Green Revolution, irrigation, mechanisation at work). That widening gap is your evidence: food has out-grown population, supporting the optimist Boserup, not the pessimist Malthus. Quote the units (often an index where a base year = 100).

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