IB DP Geography Core: Global Climate – Vulnerability and Resilience

This guide covers Global Climate: Vulnerability and Resilience, part of the compulsory SL and HL core (Geographic perspectives: global change) for IB Diploma Programme Geography, first assessment 2019. The full syllabus guide confirms this core is identical in content and hours for every student, unlike the seven teacher-selected geographic-themes options.

Where this fits in the syllabus

Because the geographic-themes options vary by school, revision material on an unstudied option is wasted effort. The core is different: every DP Geography student, regardless of school, studies Global Climate as part of the shared 70-hour core, examined in Paper 2 for everyone without exception. This makes it one of the highest-value topics to revise thoroughly, since unlike an option, it applies universally.

Syllabus coverage

IB DP GEOGRAPHY — SL AND HL CORE: GLOBAL CLIMATE — VULNERABILITY AND RESILIENCE

The IB Geography guide (first assessment 2019) divides this unit into three sub-topics:

1. Causes of global climate change — how natural and human processes affect the global energy balance. This covers the atmospheric system, including the natural greenhouse effect and energy balance (incoming shortwave radiation and outgoing longwave radiation), and changes in the global energy balance, and the role of feedback loops, resulting from factors that include solar radiation variations (including global dimming due to volcanic eruptions) and terrestrial albedo changes; the guide’s list of factors continues beyond these. In brief: greenhouse gases absorb some of the longwave radiation the Earth’s surface emits and re-emit it, warming the lower atmosphere; human activity that raises greenhouse gas concentrations enhances this effect; volcanic aerosols reflect incoming sunlight, causing temporary cooling; and melting ice lowers albedo, so more energy is absorbed and warming increases further — a positive feedback loop.
2. Consequences of global climate change — the effects of climate change. Commonly studied effects include sea-level rise, changing rainfall patterns, more frequent or intense extreme weather such as heatwaves, and knock-on impacts on ecosystems, farming, water supply and human health.
3. Responding to global climate change — possibilities for responding to climate change and power over the decision-making process, including disparities in exposure to climate change risk and vulnerability (variations in people’s location, wealth, social differences such as age, gender and education, and risk perception), detailed examples of two or more societies with contrasting vulnerability, government-led adaptation and mitigation strategies (global geopolitical efforts, recognising that the sources of greenhouse gas emissions may be spatially distant from the countries most impacted; carbon emissions offsetting and trading; and technology, including geo-engineering), and civil society and corporate strategies to address global climate change, with a case study of the response to climate change in one country focusing on the actions of non-governmental stakeholders.

Key vocabulary for the responding sub-topic:

• Vulnerability — the degree to which a place, community or system is susceptible to harm from a climate hazard. This resource breaks it into three parts — exposure, sensitivity and adaptive capacity — a framework widely used in climate-change research (for example in IPCC assessment reports). It is this resource’s analytical tool, not the IB guide’s wording: the guide does not use the terms sensitivity or adaptive capacity.
• Resilience — the capacity of a place or community to absorb, recover from, and adapt to climate-related disturbance
• Adaptation — deliberate changes made in response to actual or expected climate impacts (for example, flood defences, drought- resistant crops)
• Mitigation — action taken to reduce the causes of climate change itself, distinct from adaptation’s focus on managing its effects

At HL, this core vocabulary connects directly to Global risks and resilience, part of the HL-only extension examined in Paper 3, which applies the same vulnerability-and-resilience concepts to interconnected global systems more broadly rather than climate specifically.

How to approach it

Keep adaptation and mitigation clearly separate — a common error is using the two terms interchangeably, when they are distinct types of response with different targets (mitigation targets the cause, adaptation targets the effect). When analysing why two places facing a similar climate hazard experience different outcomes, break vulnerability down rather than simply asserting that one place is “more vulnerable”: tie your points to the factors the guide names (location, wealth, social differences such as age, gender and education, and risk perception), and use a framework such as this resource’s exposure, sensitivity and adaptive capacity to organise them, so that vulnerability is treated as more than the size of the hazard alone. Do not skip the causes and consequences sub-topics: be able to explain the energy balance, the natural greenhouse effect and at least one feedback loop, not only responses. As with every DP Geography theme, generic description scores lower than named, specific case studies with real dates, locations and figures, so build a small bank of specific vulnerability and resilience examples — a named flood event, drought, or heatwave with its human and policy response — that can be reused flexibly across different Paper 2 questions.

Worked example: comparing vulnerability across two places

A question asks why two places facing a similar climate hazard (for example, flooding) might experience very different outcomes.

Exposure:           both places face a similar physical hazard
                     (rising flood risk)

Sensitivity:         Place A has more people living in low-lying,
                     poorly built housing; Place B has stronger
                     building codes and better drainage infrastructure

Adaptive capacity:   Place A has fewer economic resources and weaker
                     institutions to respond; Place B has greater
                     financial and institutional capacity to invest in
                     defences and recovery

Conclusion:          vulnerability is not just about the size of the
                     hazard but the combination of exposure,
                     sensitivity and adaptive capacity -- two places
                     facing an identical hazard can have very
                     different outcomes

Working through a structure like this — and linking each part to the guide’s named factors, such as wealth or location — gives a more analytical answer than only describing one place as “more vulnerable” than the other. The framework is not the guide’s own; the guide asks for detailed examples of two or more societies with contrasting vulnerability, so apply it to real, named places.

Connecting to the fieldwork report

This unit is not a good basis for the internally assessed fieldwork report. The IB guide lists “Unit 2: Global climate vulnerability and resilience” among the topics “unlikely to be suitable for fieldwork investigation”, and states that global issues are unsuitable for study unless they can be adapted to the local scale. Choose a fieldwork topic that allows a genuinely testable question with primary data collected locally, and check your choice with your teacher.

Common mistakes

Confusing adaptation (managing a hazard’s effects) with mitigation (reducing the hazard’s underlying causes). Describing vulnerability in general terms without breaking it down into the factors that make one place or group more vulnerable than another. Presenting exposure, sensitivity and adaptive capacity as IB-specified terms rather than as an analytical framework. Revising only responses and neglecting the causes (energy balance, greenhouse effect, feedback loops) and consequences sub-topics. Using vague, unnamed examples such as “a developing country” instead of a specific, named place and event with real figures. Assuming this theme is optional, or blending it into a geographic-themes option answer without being explicit about which paper’s content is being used — Paper 1 (options) and Paper 2 (core) are marked against different prescribed content even where the underlying geography is related.

Quick revision checklist

• Revise all three sub-topics: causes (energy balance, natural greenhouse effect, feedback loops), consequences, and responding.
• Know the guide’s factors behind disparities in exposure and vulnerability: location, wealth, social differences (age, gender, education) and risk perception.
• Prepare detailed examples of two or more societies with contrasting vulnerability.
• Prepare a case study of one country’s response to climate change focusing on the actions of non-governmental stakeholders (civil society and corporate strategies).
• Use this resource’s exposure, sensitivity and adaptive capacity framework to organise vulnerability analysis, remembering it is a research framework rather than the guide’s own terms.
• Keep adaptation and mitigation precisely distinct.
• Build a bank of specific, named case studies with real dates, locations and figures.
• If your class studies Extreme environments or Geophysical hazards, practise distinguishing option-specific points from core Global Climate points.
• HL: connect this core vocabulary forward to the Global risks and resilience extension content.

Why resilience is more than the absence of vulnerability

A frequent conceptual slip is treating resilience simply as “low vulnerability” – they are related but distinct ideas. A place can reduce its exposure or sensitivity to a hazard (lowering vulnerability) while separately building the institutional and economic capacity to recover quickly if a disaster does occur (building resilience); strong Paper 2 answers can discuss a place’s response along both dimensions rather than assuming that addressing one automatically addresses the other. This distinction matters most in comparative questions, where a place might be less vulnerable in the moment a hazard strikes but recover more slowly afterwards than a place with different characteristics – a nuance that only becomes visible once resilience is treated as its own concept rather than a mirror image of vulnerability.

Official syllabus

International Baccalaureate Organization, Diploma Programme Subject Brief – Individuals and Societies: Geography, first assessment 2019 – the same source already cited by the full syllabus guide, which confirms this core theme’s compulsory status and Paper 2 assessment for every student. Verified 2026-09-06. The three sub-topics, the named vulnerability factors and the fieldwork suitability list were checked against the IB Geography guide (first assessment 2019) on 2026-09-16.