AQA A-Level Geography Paper 2, June 2025: Question 4
48 marks · Hard difficulty · Extended Response
AQA A-Level Geography Question 4 consisting of parts 04.1 (epidemiological transition), 04.2 (analysing dietary energy and food supply data), 04.3 (assessing education's role in reducing fertility rates), 04.4 (assessing factors negatively impacting health in a local area), and 04.5 (evaluating the extent to which carbon cycle changes will cause future migration).
Practise this questionQuestion
Question text
04.1 Outline the concept of the epidemiological transition.
[4 marks]
Extra space …
Figure 7a and Figure 7b are in the insert.
Figure 7a shows average dietary energy supply in world regions from
2000 to 2018.
Figure 7b shows the adequacy of food supply in world regions from
2000 to 2018.
04.2 Analyse the data shown in Figure 7a and Figure 7b.
[6 marks]
(22) …
Extra space …
Figure 8a and Figure 8b are in the insert.
Figure 8a shows the percentage of girls completing primary school and fertility rate
(the number of births per woman) in selected countries in 1980 and 2010.
Figure 8b is an extract from the website of ‘She’s the First’, an NGO which
campaigns to promote improved access to education for girls worldwide. 8
04.3 Using Figure 8a, Figure 8b and your own knowledge, assess the view that
(23)education is the most significant factor in reducing fertility rates.
[9 marks]
Extra space … 25
(24)
04.4 Assess the relative importance of factors that have a negative impact on health in a
local area that you have studied.
[9 marks]
Extra space …
(25)
… 27
(26)
04.5 ‘Impacts of changes to the carbon cycle will become an increasingly important cause
of migration in the future.’
To what extent do you agree with this statement?
[20 marks]
… 28
(27)
Extra space …
… 29
(28) …
End of Question 4
Question 5 Resource security
Mark scheme
Show the mark scheme
Total
Qu Part Marking guidance
marks
04 1 Outline the concept of the epidemiological transition. 4
AO1 = 4
Point marked
Allow 1 mark per valid point with extra mark(s) for developed points (d).
Notes for answers
• Most basically it describes changes in health and population as a
country’s economy develops. (1).
• It describes changing patterns of population age distributions,
mortality, fertility, life expectancy, and causes of death (1).
• It suggests that the nature of disease and causes of death
experienced in a place change over time (1).
• It describes a shift from infectious diseases being the primary causes
of death in a country to noncommunicable diseases being the
dominant causes of death (1). Over time pandemics of infection are
gradually replaced by degenerative conditions and diseases
associated with lifestyle, as the main form of morbidity (1d).
• The concept suggests there are 4/5 stages to this transition (1). Age
of infection and famine; Age of degenerative and man-made diseases;
Age of delayed and degenerative diseases; Age of inactivity and
obesity (1d).
• It suggests that with changes in morbidity life expectancy increases in
each stage of the transition (1), from 20 to 40 years in phase one, to
over 70 years in phase 4 (1d).
The Notes for answers are not exhaustive. Credit any valid points.
04 2 Analyse the data shown in Figure 7a and Figure 7b. 6
AO3 = 6
AO3 – Analysis of the quantitative data shown in Figure 7a and
Figure 7b.
Mark scheme
Level 2 (4–6 marks)
AO3 – Clear analysis of the quantitative evidence provided which makes
appropriate use of data to support. Clear connections between different
aspects of the data.
Level 1 (1–3 marks)
AO3 – Basic analysis of the quantitative evidence provided which makes
limited use of data to support. Basic or limited connections between
different aspects of the data.
Notes for answers
The question requires analysis of the two line graphs shown–A-LEVEL GEOGRAPHYin Figure 7a– –
and Figure 7b. Connections should be made between the two graphs.
AO3 27
• Figure 7a shows that globally there has been an increase in the
amount of calories of food produced per person per day. By 2018
there is about 250 extra calories per person per day being produced
around the world.
• Despite some slight fluctuation in North America and Europe, and
Oceania, all regions have seen an increase in the number of calories
produced per person per day. Asia has seen the most significant
increase, gaining almost 350 calories per person per day over the time
period, which is over 3 times the increase seen in North America and
Europe.
• Although all regions have had increased food production overall, Africa
has seen a slight decrease in the last 5 years of the period.
• There is a very significant variation in the calories produced across the
regions. In 2000 North America and Europe produced over 40% more
calories per person than in Africa. Despite the reasonable increases
noted above the gap between these two regions has not noticeably
shrunk over the 18 years.
• Despite the significant variation in the number of calories produced,
Figure 7b shows that none of the regions have less food available than
the recommended average number of calories per person.
• Figure 7a and Figure 7b show that both the average food production
per person and average food supply per person have increased in all
regions.
• Figure 7b shows that despite all regions having adequate/enough food
per person, there is very significant variation in how adequate food
supply is in each region.
• In both figures the different regions are almost in the same order.
With North America and Europe producing the most food and having
the greatest surplus of available calories, and Africa has both the
lowest level of production and smallest surplus per person per day.
• North America and Europe have over a 1/3 more food than is needed
in 2000, this surplus increases to 40% over 18 years. Whilst in Africa
over the same period there is a much lower increase in amount of
surplus food, from less than 10% to less than 15%. North America and
Europe’s surplus is 2.5 to 3 times that in Africa.
• The rate of increase in both the amount of food produced and the size
of surplus food availability has slowed in all regions since about 2010.
– A-LEVEL GEOGRAPHY – –
Credit any other valid analysis.
04 3 Using Figure 8a, Figure 8b and your own knowledge, assess the 9
view that education is the most significant factor in reducing fertility AO1 = 4
rates. AO2 = 5
AO1 – Knowledge and understanding of factors affecting fertility rates.
AO2 – Application of knowledge and understanding to the novel situation
to analyse and assess the extent to which education and other factors
affect fertility rates.
Mark scheme
28 Level 3 (7–9 marks)
AO1 – Demonstrates detailed knowledge and understanding of concepts,
processes, interactions and change. These underpin the response
throughout.
AO2 – Applies knowledge and understanding appropriately with detail.
Connections and relationships between different aspects of study are
fully developed with complete relevance. Analysis and evaluation are
detailed and well supported with appropriate evidence. A well balanced
and coherent argument is presented.
Level 2 (4–6 marks)
AO1 – Demonstrates clear appropriate knowledge and understanding of
concepts, processes, interactions and change. These are mostly
relevant though there may be some minor inaccuracy.
AO2 – Applies clear knowledge and understanding appropriately.
Connections and relationships between different aspects of study are
emerging/evident with some relevance. Analysis and evaluation evident
and supported with some appropriate evidence. A clear but partial
argument is presented.
Level 1 (1–3 marks)
AO1 – Demonstrates basic/limited knowledge and understanding of
concepts, processes, interactions and change. These offer limited
relevance with inaccuracy.
AO2 – Applies limited knowledge and understanding. Connections and
relationships between different aspects of study are basic with limited
relevance. Analysis and evaluation basic and supported with limited
appropriate evidence. A basic argument is presented.
Notes for answers
– A-LEVEL GEOGRAPHY – –
The question requires knowledge and understanding of factors in natural
population change, especially, fertility rate and factors affecting it.
Candidates should apply knowledge and understanding to assess how
much factors, like education, as shown in Figure 8a and Figure 8b, affect
fertility rates. Max low level 2 if no reference to education. There is no
credit for analysing data on the graph in isolation.
AO1
• Factors in natural population change: the demographic transition
model, key vital rates, age–sex composition; cultural controls. Models
of natural population change, and their application in contrasting
physical and human settings. Concept of the Demographic Dividend. 29
• Key population parameters: distribution, density, numbers, change.
Key role of development processes. Global patterns of population
numbers, densities and change rates.
• Relationships between people in their local, national and international
communities.
AO2
• Assessment using Figure 8a may suggest that there is a negative
correlation between the proportion of girls who complete primary
school and fertility rates. This is especially true in 2010, and once the
rate of primary school completion passes 50 percent. In 1980 almost
half of the countries have less than 50% of girls completing primary
school and almost half of the countries have fertility rates of over 6
babies per woman. By 2010 the majority of countries have over 80%
of girls completing primary school and the fertility rates in the majority
of countries is below 3, less than half the rate in 1980.
• Assessment usingFigure 8b may reinforce the connection between
education and fertility identified in Figure 8a. Figure 8b suggests that if
girls continue with education and complete secondary school they may
marry later and are likely to have have fewer children. This is
because, young women may then be more able to make informed
decisions for themselves about their own priorities, for example by
continuing into further education or starting a career. This may mean
girls go on to have fewer children.
• Assessment should come to the view that there are a range of factors
that affect fertility and education although important, is just one factor.
Responses should explore the role of other factors, such as the level of
choice women have in their lives, cultural influences, availability and
quality of health care (especially around maternal health), child health
and infant mortality rates, and wealth.
• Responses may come to the view that Figure 8b supports the view that
education is significant, but that there are a range of factors that affect
fertility. However, it could be suggested that education plays a crucial
role in all/many of these. For example, it suggests that education
affects future wealth and health which themselves are also important
factors affecting fertility rates.
• There may be an overall conclusion coming to the view that there are a
range of factors affecting fertility rates, but that education is possibly
one of the most important. It should be supported by evidence in the
response. – A-LEVEL GEOGRAPHY – –
Credit any other valid approach.
30 04 4 Assess the relative importance of factors that have a negative 9
impact on health in a local area that you have studied. AO1 = 4
AO2 = 5
AO1 – Knowledge and understanding of factors affecting health.
Knowledge and understanding of the population characteristics of a local
area.
AO2 – Applies knowledge and understanding to analyse and assess the
importance of factors that have a negative impact on health in a local
area.
Mark scheme
Level 3 (7–9 marks)
AO1 – Demonstrates detailed knowledge and understanding of concepts,
processes, interactions and change. These underpin the response
throughout.
AO2 – Applies knowledge and understanding appropriately with detail.
Connections and relationships between different aspects of study are
fully developed with complete relevance. Analysis and evaluation are
detailed and well supported with appropriate evidence. A well balanced
and coherent argument is presented.
Level 2 (4–6 marks)
AO1 – Demonstrates clear appropriate knowledge and understanding of
concepts, processes, interactions and change. These are mostly
relevant though there may be some minor inaccuracy.
AO2 – Applies clear knowledge and understanding appropriately.
Connections and relationships between different aspects of study are
emerging/evident with some relevance. Analysis and evaluation evident
and supported with some appropriate evidence. A clear but partial
argument is presented.
Level 1 (1–3 marks)
AO1 – Demonstrates basic/limited knowledge and understanding of
concepts, processes, interactions and change. These offer limited
relevance with inaccuracy.
AO2 – Applies limited knowledge and understanding. Connections and
relationships between different aspects of study are basic with limited
relevance. Analysis and evaluation basic and supported with limited
appropriate evidence. A basic argument is presented.
Notes for answers
This question requires candidates to go beyond the specification to
assess the relative importance of factors that negatively impact on health
in the local area they have studied. The question is very open-ended,
and candidates may attempt this in a variety of ways–A-LEVEL GEOGRAPHY.However, there– –
should be a clear focus on how specific factors affect health in the named
local area.
AO1
• Case study of a specified local area to illustrate and analyse the
relationship between place and health related to its physical
environment, socio-economic character and the experience and
attitudes of its populations. 31
• Economic and social development and the epidemiological transition.
• The relationship between environment variables eg climate,
topography (drainage) and incidence of disease. Air quality and
health. Water quality and health.
AO2
• Assessment of whether the physical environment of the local place has
a negative impact on the people. For example, if there is a lack of
green space which potentially has a negative impact on the mental
well-being of the population.
• Assessment of whether the local climate has specific negative impacts
on health. For example, excess summer deaths due extremes of heat
during heatwaves in a heavily urbanised place.
• Assessment of whether the socio-economic character of the local
place has a negative impact on health. For example, is the local area
experiencing high levels of multiple deprivation with negative health
outcomes associated with this.
• Responses may assess whether the air quality of the local area has
specific negative impacts on health. For example, if the local place is
prone to very high levels of particulate pollution relating to high traffic
levels, leading to higher levels of asthma, COPD or other respiratory
health complaints.
• Assessment should come to a view about the relative importance of
factors in having a negative impact on health in the local area.
• Any assessment and conclusion is valid as long as it supports the
preceding content. – A-LEVEL GEOGRAPHY – –
Credit any other valid approach.
04 5 ‘Impacts of changes to the carbon cycle will become an increasingly 20
important cause of migration in the future.’ AO1 = 10
AO2 = 10
To what extent do you agree with this statement?
AO1 – Knowledge and understanding of changes to the carbon cycles.
Knowledge and understanding of causes of migration.
AO2 – Application of knowledge and understanding to assess the extent
to which changes to the carbon cycles will become an increasingly
important cause of migration in the future.
Notes for answers
The question links items from across specification units. Specifically
human induced changes to the carbon cycle, in the Water and Carbon
unit, to environmental and socio-economic causes of migration, in the
Population and the Environment unit. There is no requirement for
reference to specific migrations, but allow AO1 credit for named
32 examples where appropriate.
AO1
• Changes in the carbon cycle over time, to include human impact
(including hydrocarbon fuel extraction and burning, farming practices,
deforestation, land use changes).
• The carbon budget and the impact of the carbon cycle upon land,
ocean and atmosphere, including global climate.
• International migration: refugees, asylum seekers and economic
migrants: environmental and socio-economic causes, processes.
• Prospects for the global population. Projected distributions. Critical
appraisal of future population environment relationships.
AO2
• Analysis and evaluation of the predicted impacts of human induced
changes to the carbon cycle. This could include increased
atmospheric temperatures, changes to the amount and pattern of
precipitation.
• Analysis and evaluation of the environmental and socio-economic
causes of migration.
• It is predicted that human induced changes to the carbon cycle are
leading to increased rates of desertification and drought. Some parts
of north Africa and southern Europe are predicted to change from
semi-arid to arid climate conditions. This could lead to issues for food
production and water supply which could become a push factor for
migration from those areas.
• It is predicted that human induced changes to the carbon cycle will
lead to rises in sea level of between 1 and 2 metres by 2100. This
could make living in low lying coastal environments problematic and
become a push factor for migration from those places. For example
island nations like Kiribati are already considering relocating their–A-LEVEL GEOGRAPHY– –
population in the future.
• Some locations are predicted to experience increased intensity and 33
unpredictability of storm events. Low lying areas which are already
densely populated, especially in southeast Asia, may find that negative
impacts of tropical storms become a more important push factor for
migration in the future.
• Responses may also assess the extent to which other factors will
become important causes of migration in the future, this is credit
worthy, as long as these are assessed in relation to the importance of
changes to the carbon cycle.
• Any conclusion is valid as long as it is supported by the preceding
content. – A-LEVEL GEOGRAPHY – –
Credit any other valid approach.
Marking grid for Question 4.5
Level/ Criteria/Descriptor
Mark
Range
Level 4 • Detailed evaluative conclusion that is rational and firmly based on knowledge and
(16–20 understanding which is applied to the context of the question (AO2).
marks) • Detailed, coherent and relevant analysis and evaluation in the application of knowledge
and understanding throughout (AO2).
• Full evidence of links between knowledge and understanding to the application of
knowledge and understanding in different contexts (AO2).
• Detailed, highly relevant and appropriate knowledge and understanding of place(s) and
environments used throughout (AO1).
• Full and accurate knowledge and understanding of key concepts and processes
throughout (AO1).
• Detailed awareness of scale and temporal change which is well integrated where
appropriate (AO1).
Level 3 • Clear evaluative conclusion that is based on knowledge and understanding which is
(11–15 applied to the context of the question (AO2).
marks) • Generally clear, coherent and relevant analysis and evaluation in the application of
knowledge and understanding (AO2).
• Generally clear evidence of links between knowledge and understanding to the
application of knowledge and understanding in different contexts (AO2).
• Generally clear and relevant knowledge and understanding of place(s) and environments
(AO1).
• Generally clear and accurate knowledge and understanding of key concepts and
processes (AO1).
• Generally clear awareness of scale and temporal change which is integrated where
appropriate (AO1).
Level 2 • Some sense of an evaluative conclusion partially based upon knowledge and
(6–10 understanding which is applied to the context of the question (AO2).
marks) • Some partially relevant analysis and evaluation in the application of knowledge and
understanding (AO2).
• Some evidence of links between knowledge and understanding to the application of
knowledge and understanding in different contexts (AO2).
• Some relevant knowledge and understanding of place(s) and environments which is
partially relevant (AO1).
• Some knowledge and understanding of key concepts, processes and interactions and
change (AO1).
34 • Some awareness of scale and temporal change which is sometimes integrated where
appropriate. There may be a few inaccuracies (AO1).
Level 1 • Very limited and/or unsupported evaluative conclusion that is loosely based upon
(1–5 knowledge and understanding which is applied to the context of the question (AO2).
marks) • Very limited analysis and evaluation in the application of knowledge and understanding.
This lacks clarity and coherence (AO2).
• Very limited and rarely logical evidence of links between knowledge and understanding
to the application of knowledge and understanding in different contexts (AO2).
• Very limited relevant knowledge and understanding of place(s) and environments (AO1).
• Isolated knowledge and understanding of key concepts and processes (AO1).
• Very limited awareness of scale and temporal change which is rarely integrated where
appropriate. There may be a number of inaccuracies (AO1).
Level 0 • Nothing worthy of credit.
(0 marks)
How to answer it
AQA A-Level Geography: Population, Health & Carbon Feedback Study Guide
This paper tests core conceptual knowledge, synoptic synthesis, and resource evaluation across Population and the Environment and Water and Carbon Cycles:
- Theoretical Models: Understanding Omran's Epidemiological Transition Model (phases, disease shifts from infectious to degenerative, and life expectancy shifts).
- Data Analysis & Synthesis: Interrogating bivariate regional graphs of food supply adequacy and dietary energy, identifying regional disparities, anomalies, and rates of change.
- Evaluative Judgements: Assessing the primacy of female education versus socioeconomic and cultural determinants in reducing total fertility rates (TFR).
- Local Place Profiling: Evaluating environmental, climatic, and socio-economic determinants of health outcomes in a defined, studied local area.
- Synoptic Essay Writing (20 Marks): Formulating an evidence-based argument linking anthropogenic perturbation of the carbon cycle (climate change, desertification, sea-level rise) to international migration patterns against competing socioeconomic drivers.
The Epidemiological Transition Model
Outline the concept of the epidemiological transition.
✅ Model Answer (Full Marks Breakdown)
The epidemiological transition describes changes in population health, life expectancy, and causes of death as a country undergoes economic and social development [1 mark].
Historically, human populations were dominated by infectious and communicable diseases (e.g. cholera, tuberculosis, famine) with low life expectancy between 20 to 40 years [1 mark].
Over time, improvements in sanitation, healthcare, and nutrition cause a shift so that degenerative and non-communicable lifestyle diseases (such as coronary heart disease, strokes, and cancers) become the primary causes of mortality [1 mark].
The model typically consists of four/five distinct phases (e.g. Age of Pestilence and Famine, Age of Receding Pandemics, Age of Degenerative and Man-Made Diseases, and Age of Delayed Degenerative Diseases), pushing life expectancy beyond 70–80 years [1 mark].
💡 Key Knowledge
- Formulated by: Abdel Omran in 1971.
- Core Shift: Infectious / communicable diseases (Phase 1/2) → Chronic / non-communicable / lifestyle diseases (Phase 3/4).
- Demographic Link: Mirrors the Demographic Transition Model (DTM), moving from high fluctuating mortality to low, controlled mortality.
- Modern Extension (Phase 5): Resurgence of infectious diseases due to antimicrobial resistance, globalisation, or emergent pandemics (e.g. COVID-19).
🧠 Exam Technique: 4-Mark "Outline"
Use the 1 point + 1 development formula twice, or state four distinct factual points. To secure full marks rapidly:
- Define the overall concept clearly (relationship between development, mortality, and disease).
- State the specific direction of change (infectious to chronic/degenerative).
- Name at least two specific phases or quantify the shift in life expectancy (e.g., from ~30 years to 70+ years).
❌ Common Errors
- Confusing the Epidemiological Transition strictly with the Demographic Transition (writing solely about birth and death rates without mentioning disease types).
- Failing to name specific categories of diseases (communicable vs non-communicable / degenerative).
- Omitting the vital role of economic development, sanitation, and medical advances driving the transition.
Analysing Global Food Supply & Dietary Energy
Analyse the data shown in Figure 7a and Figure 7b.
📐 Data Synthesis & Manipulations
- Global Increase: Dietary energy supply increased globally from 2000 to 2018 (overall ~250 extra calories/person/day worldwide).
- Regional Disparity (7a): Asia experienced the steepest rise (~350 calories/person/day), over 3 times the increase seen in North America and Europe.
- Surplus Adequacy (7b): In 2018, North America and Europe had food supply exceeding nutritional requirements by >40% (up from ~35% in 2000).
- Persistent Deficit/Lag: Africa maintained the lowest dietary energy and smallest surplus throughout (under 15% surplus in 2018; a slight decrease in food production in the final 5 years of the period).
- Comparative Ratio: The surplus food in North America/Europe is 2.5 to 3 times greater than that of Africa.
✅ What a Level 2 (5–6 Marks) Response Looks Like
- Direct Cross-Figure Links: Explicitly connects Figure 7a (absolute energy in kcal/capita/day) with Figure 7b (percentage adequacy/surplus above national requirement).
- Synthesised Trend: Notes that while all regions exceed 100% adequacy (no region on average experiences absolute national food calorie deficits by 2018), deep structural inequalities persist.
- Plateauing / Deceleration: Highlights that rate of growth in both supply and surplus slowed down across most regions after 2010.
- Accurate Data Manipulation: Calculates differences, rates, or multiples rather than simply copying raw graph values.
🧠 Exam Technique: AO3 Data Analysis
For Level 2 (4–6 marks), examiners require clear analysis and effective connections between both figures:
- Avoid discussing Figure 7a completely and then Figure 7b in isolation. Synthesise them together by region or theme.
- Always manipulate data (e.g. "Asia increased by ~350 kcal, which is three times the growth observed in Europe").
- Mention anomalies or post-2010 changes (e.g. slight dip in African per-capita supply in recent years).
❌ Common Errors
- "Lift and Drop": Simply listing numbers from the axes without comparing regions or calculating changes over time.
- Treating 7b as absolute calories rather than a percentage index of dietary adequacy.
- Ignoring the instruction to link both figures, receiving a maximum of Level 1 (1–3 marks).
Female Education vs Other Factors in Reducing Fertility Rates
Using Figure 8a, Figure 8b and your own knowledge, assess the view that education is the most significant factor in reducing fertility rates.
💡 The Evaluative Spectrum
Education as Primary Driver:
- Delays age of marriage and first pregnancy (keeps girls in school longer).
- Enhances bodily autonomy, career aspirations, and literacy regarding modern contraception.
- Reduces infant mortality (educated mothers provide better nutrition and hygiene), removing the "child replacement" motive.
Alternative / Compounding Factors:
- Economic Development & Urbanisation: Shift from children as economic assets (agriculture) to economic liabilities (cost of childcare, housing).
- State Policies: Pro-contraception campaigns, government family planning (e.g. Bangladesh's door-to-door health workers, China's historical One-Child policy).
- Cultural & Religious Norms: Societal expectations, religious views on family size, and male-dominated decision making.
✅ Structuring an Exemplar Level 3 (7–9 Marks) Answer
- Evidence from Figure 8a: Highlight the clear negative correlation: countries where primary completion is >80% in 2010 generally display TFR < 3.0 (half of the 1980 levels).
- Evidence from Figure 8b: Cite the NGO evidence showing secondary education transforms women's ability to plan families, earn income, and break intergenerational poverty cycles.
- Critical Counter-Evaluation: Argue that education is an enabler, but requires access to affordable healthcare, modern contraception, and legal reproductive rights to be fully effective.
- Balanced Conclusion: Education is the catalytic foundation, but its effectiveness depends heavily on economic security and supportive socio-political structures.
🧠 Exam Technique: "Assess the view..."
- Max Level 2 (6 marks) if you do not use both the provided figures (8a, 8b) AND your own knowledge.
- Max Level 2 (6 marks) if your response provides no evaluation of alternative factors (unbalanced argument).
- Do not spend time describing graph plotting mechanics; jump directly into analytical inferences regarding fertility rate trends.
❌ Common Errors
- Purely descriptive regurgitation of the text in Figure 8b without geographical critique.
- Treating correlation as direct, isolated causation without considering poverty, health clinics, or political stability.
- Omitting a nuanced evaluative final judgement.
Local Place Study: Negative Health Impacts
Assess the relative importance of factors that have a negative impact on health in a local area that you have studied.
💡 Comparative Factor Framework
Select your studied local area (e.g. inner-city urban ward vs suburban fringe or rural village) and evaluate contrasting factors:
- Physical Environment / Climate: Urban heat island effect (heatwave mortality in elderly), poor topography trapping pollutants, damp housing conditions.
- Environmental Pollution: Particulate matter (PM₂.₅, PM₁₀) and NO₂ concentrations along arterial transport corridors triggering asthma, COPD, and cardiovascular conditions.
- Socioeconomic Deprivation: Low disposable income causing food poverty ('food deserts' dominated by fast food), poor housing quality, chronic stress, substance dependency.
- Access to Healthcare Services: GP shortages, wait times, lack of preventative community health infrastructure.
✅ Model Paragraph Structure (PEEL)
Point: In [Named Local Area], socio-economic deprivation and substandard housing act as the primary catalyst for chronic respiratory disease.
Evidence: Cite specific local data (e.g. Index of Multiple Deprivation deciles, percentage of households living in fuel poverty, or asthma admission rates compared to national averages).
Evaluation: Contrast this with ambient environmental factors (such as roadside vehicle emissions). Weigh which factor is more significant (e.g., poor housing amplifies environmental exposures, making poverty the structural root cause).
🧠 Exam Technique: "Relative Importance"
- Name a Specific Place: Vague answers discussing "a city" or "a town" cannot score beyond Level 1.
- You must explicitly compare factors against one another using comparative language ("more influential than", "acts as an underlying catalyst for", "short-term trigger vs chronic cause").
- A definitive final judgement must declare which factor is genuinely the most detrimental in that specific spatial context.
❌ Common Errors
- Providing a generic list of health problems without linking them to specific causal factors.
- Ignoring the "relative importance" command word and treating all factors as equally damaging.
- Omitting quantitative or qualitative place-specific evidence.
Synoptic Essay: Carbon Cycle Perturbation & Future Migration
'Impacts of changes to the carbon cycle will become an increasingly important cause of migration in the future.' To what extent do you agree with this statement?
💡 Carbon Cycle Impacts (AO1)
- Anthropogenic Forcing: Combustion of fossil fuels, land-use change, and deforestation elevate atmospheric CO₂ (>420 ppm), amplifying the enhanced greenhouse effect.
- Ocean Impacts: Thermal expansion and melting of terrestrial ice sheets (Greenland/Antarctica) driving eustatic sea-level rise (projected 0.5–1.0m+ by 2100).
- Atmospheric & Weather Perturbations: Shifts in Hadley cell circulation, intensified subtropical drought, desertification in the Sahel / Mediterranean, and increased tropical cyclone intensity.
💡 Alternative Drivers of Migration (AO1)
- Economic Pull Factors: Wage differentials, urbanisation, industrial job clusters, remittance opportunities.
- Socio-Political Push Factors: Geopolitical conflict, civil warfare, human rights abuses, persecution (e.g. Syria, Ukraine, Horn of Africa).
- Demographic Pressures: Youth bulges and resource competition in rapidly growing developing nations.
✅ Constructing a Level 4 (16–20 Marks) Argument
1. Carbon Cycle as a "Threat Multiplier" (Agree):
Rising sea levels threaten low-lying coastal megacities (e.g. Dhaka, Bangladesh) and small island developing states (e.g. Kiribati, Tuvalu), where inundation and saltwater intrusion into freshwater aquifers make habitats physically uninhabitable, causing forced displacement.
Severe desertification in regions like the Sahel degrades agricultural yields, undermining pastoral livelihoods and pushing millions into rural-to-urban or international migration corridors.
2. Interconnected Complexity (Counter / Nuance):
Environmental changes caused by carbon disruptions rarely act in isolation. They trigger resource scarcity (water, arable land), which sparks economic collapse or armed conflict (e.g. pre-civil war drought in Syria). Disentangling "climate migrants" from "economic/political refugees" is challenging.
3. Spatial & Temporal Evaluation:
In the short term, economic and political factors dominate migration volumes. Over medium-to-long timescales (post-2050), as critical climate tipping points are crossed, carbon cycle feedbacks will become an overriding driver.
❌ Common Essay Traps
- Forgetting the Carbon Link: Writing purely about generic "climate change" without explaining the carbon cycle mechanisms (carbon flux, atmospheric sinks, radiative forcing).
- One-Sided Arguments: Failing to balance carbon-driven migration against dominant modern socioeconomic drivers.
- No Spatial Depth: Making broad claims without naming specific vulnerable regions (e.g. Kiribati, Bangladesh, the Sahel, Mediterranean Europe).
- Weak Conclusion: Summarising paragraphs instead of providing a reasoned, evaluative judgement on the statement.
Topics
3.1 Physical geography · 3.2 Human geography · 3.4 Geographical skills checklist · 3.1.1 Water and carbon cycles · 3.2.4 Population and the environment · 3.4.2 Specific skills
Question and mark scheme from the AQA A-Level Geography examination, Paper 2, June 2025. QuestionVault is an independent revision resource; questions remain the copyright of the awarding body.