Imagine trying to share a single pizza among ten people, but one person takes half of it for themselves. This uneven sharing mirrors how natural resources are distributed and consumed across our planet. Global availability of energy, food, and water is highly uneven, shaped by physical geography and economic development.
Freshwater makes up only 2.5% of Earth's total water, and its spatial distribution creates distinct regions of Water Surplus and Water Deficit. Countries like Canada, Iceland, Norway, and Brazil (Amazon Basin) have a surplus, meaning supply exceeds demand. Conversely, regions like North Africa, the Middle East, Australia, and the Western USA suffer from severe deficits.
Food and energy consumption are strongly tied to national wealth. High-Income Countries (HICs) like the USA and France consume over 3,500 calories per person daily, creating large surpluses. In contrast, many Low-Income Countries (LICs) like Uganda and Zambia suffer from Food Insecurity, consuming fewer than 2,100 calories per day. If distributed equally, global agriculture produces enough to provide 2,700 kcal per person every day.
This inequality is most visible in the Energy Gap. HICs contain around 15% of the global population but consume over 50% of the world's energy. For example, the USA has just 4.25% of the world's population but uses 16% of its energy. A country's geological Resource Endowment dictates its natural reserves: fossil fuels like coal are found in sedimentary rock basins (USA, Russia), copper in mountainous regions (Chile), and gold in tectonically active zones (Australia). To maintain Energy Security, many countries must import resources to meet their demands.
How many surplus calories are consumed per person each day in the USA? (Actual intake = 3,800 kcal, Recommended intake = 2,500 kcal)
Step 1: Identify the formula for calorie surplus.
Step 2: Substitute the given values into the equation.
Step 3: Calculate the final answer with units.
It rains heavily in Scotland, yet millions of people living in the South East of England frequently face hosepipe bans. This happens because the UK has a severe spatial mismatch between where natural resources are located and where people actually live.
The UK faces significant Water Stress because its highest population density (around one-third of the population) is in the South and East, an area with low precipitation. Meanwhile, the North and West experience high relief rainfall but have low population densities. The average UK resident uses 146–150 litres of water daily, but critically, 25% (3.17 billion litres) is lost every day through pipe leakage. To fix this regional imbalance, large infrastructure projects like Kielder Water in Northumberland transfer water via rivers to supply cities like Newcastle.
The UK's Energy Mix has undergone a massive transformation. It no longer relies on heavy polluting fuels; as of September 2024, the UK completely phased out coal power. Today, renewables generate 43–44.9% of electricity (primarily wind), natural gas from the North Sea provides roughly 40%, and nuclear energy supplies a steady 15–20% base load.
Food production in the UK takes up 71% of the landmass, driven by large-scale Agribusiness. However, the UK is only 55–60% self-sufficient and must import the rest, increasing global Food Miles.
| Farming Type | UK Location | Characteristics | What it does NOT have |
|---|---|---|---|
| Arable Farming (Crops) | East and South East | Flat, fertile land with drier, warmer summers. | It does not have steep relief or excessive rainfall. |
| Pastoral Farming (Livestock) | West, North, and Uplands | High relief rainfall and steep gradients. | It does not have flat terrain or soils suitable for intensive cropping. |
As people earn larger salaries, their daily diets undergo a dramatic transformation. Economic development and rapid population growth (reaching 8 billion in November 2022) are the two biggest drivers accelerating global resource consumption.
When countries develop, they experience a Nutrition Transition. Wealthier populations move away from grain-based diets towards meat, dairy, and processed foods. This is highly resource-intensive; it takes roughly 7 kg of grain to produce 1 kg of beef. In China, meat consumption skyrocketed from 12 kg per person in 1980 to over 62 kg in 2023.
Calculate the percentage change in China's meat consumption from 1980 to 2023. (1980 intake = 12 kg/person, 2023 intake = 62 kg/person)
Step 1: State the percentage change formula.
Step 2: Substitute the historical and current data.
Step 3: Calculate the final percentage.
Global water and energy demands are heavily driven by sectoral shifts. Agriculture accounts for 70% of global water use, evaluated using the Water Exploitation Index (WEI). As Newly Emerging Economies (NEEs) like China and India industrialise, they drive over 70% of the annual increase in energy demand. Eventually, countries reach a stage of High Mass Consumption, where high Energy Intensity lifestyles become the norm (e.g., widespread car ownership and domestic appliances).
Why do some world maps show the UK as massive and the continent of Africa as tiny? Geographers use specific types of data visualisations to highlight the uneven distribution and consumption of resources.
A Choropleth Map uses varying shades of a single colour to represent data, where darker shading always indicates a higher value (such as severe water stress). A Proportional Symbol Map places icons (like oil barrels) over countries, where the area of the symbol is directly proportional to the resource value. Finally, a Cartogram deliberately distorts the geometry of regions based on a variable. Crucially, a cartogram does not show true land area; on a water stress cartogram, India appears bloated, while water-rich Canada appears shrunken.
When asked to analyse geographic maps in an exam, follow this step-by-step descriptive sequence:
Students often assume water stress only happens in dry, low-income countries, but highly developed regions like the South East of the UK also experience it due to high population density and low regional rainfall.
In 'Analyse' questions about resource consumption, examiners expect you to explicitly link rising wealth (GDP) to specific lifestyle changes, such as the transition to meat-heavy diets or 'energy-rich lifestyles'.
When describing data from a black-and-white exam map, remember that the darkest cross-hatching or solid shading always represents the highest value.
Whenever you are asked to 'Describe the distribution' from a map, always extract specific numerical data and the correct units from the key to support your patterns (e.g., quoting 'USA consuming >30,000 kWh per person').
Water Surplus
A situation where the supply of water in a region exceeds the demand.
Water Deficit
A situation where the demand for water is higher than the available supply.
Food Insecurity
When a population lacks reliable access to sufficient, safe, and nutritious food.
Energy Gap
The difference between a country's internal energy production and its total energy demand.
Resource Endowment
The natural resources, such as fossil fuels or minerals, that exist within a country's borders due to its physical geography.
Energy Security
The uninterrupted availability of energy sources at an affordable price.
Water Stress
When the annual water supply in a region falls below 1,700 cubic metres per person.
Energy Mix
The specific combination of different primary energy sources used by a country to generate electricity.
Agribusiness
Large-scale, intensive farming operations that apply business and technology principles to maximize crop yields.
Food Miles
The total distance food travels from where it is grown ('field') to where it is consumed ('fork').
Arable Farming
A type of agriculture that focuses on growing crops, typically occurring on flat, fertile land.
Pastoral Farming
A type of agriculture focused on the rearing of livestock, typically suited to areas with steep relief and high rainfall.
Nutrition Transition
The shift in dietary consumption towards meat, dairy, and processed foods that occurs as a country's economy develops.
Water Exploitation Index (WEI)
A metric calculated by dividing total water abstraction by total renewable water resources, expressed as a percentage.
Newly Emerging Economies (NEEs)
Countries like China and India that have recently experienced rapid industrialisation and economic growth.
High Mass Consumption
An advanced stage of economic development characterized by widespread consumer demand for manufactured goods and services.
Energy Intensity
A measure of the units of energy used per unit of GDP; high intensity indicates inefficient energy use.
Choropleth Map
A map where pre-defined geographic areas are shaded in proportion to a specific statistical variable.
Proportional Symbol Map
A map that uses symbols (like circles or icons) where the area of the symbol represents the data value for that specific location.
Cartogram
A map where the physical geometry and size of regions are distorted to represent a specific statistical variable rather than actual land area.
Put your knowledge into practice — try past paper questions for Geography A
Water Surplus
A situation where the supply of water in a region exceeds the demand.
Water Deficit
A situation where the demand for water is higher than the available supply.
Food Insecurity
When a population lacks reliable access to sufficient, safe, and nutritious food.
Energy Gap
The difference between a country's internal energy production and its total energy demand.
Resource Endowment
The natural resources, such as fossil fuels or minerals, that exist within a country's borders due to its physical geography.
Energy Security
The uninterrupted availability of energy sources at an affordable price.
Water Stress
When the annual water supply in a region falls below 1,700 cubic metres per person.
Energy Mix
The specific combination of different primary energy sources used by a country to generate electricity.
Agribusiness
Large-scale, intensive farming operations that apply business and technology principles to maximize crop yields.
Food Miles
The total distance food travels from where it is grown ('field') to where it is consumed ('fork').
Arable Farming
A type of agriculture that focuses on growing crops, typically occurring on flat, fertile land.
Pastoral Farming
A type of agriculture focused on the rearing of livestock, typically suited to areas with steep relief and high rainfall.
Nutrition Transition
The shift in dietary consumption towards meat, dairy, and processed foods that occurs as a country's economy develops.
Water Exploitation Index (WEI)
A metric calculated by dividing total water abstraction by total renewable water resources, expressed as a percentage.
Newly Emerging Economies (NEEs)
Countries like China and India that have recently experienced rapid industrialisation and economic growth.
High Mass Consumption
An advanced stage of economic development characterized by widespread consumer demand for manufactured goods and services.
Energy Intensity
A measure of the units of energy used per unit of GDP; high intensity indicates inefficient energy use.
Choropleth Map
A map where pre-defined geographic areas are shaded in proportion to a specific statistical variable.
Proportional Symbol Map
A map that uses symbols (like circles or icons) where the area of the symbol represents the data value for that specific location.
Cartogram
A map where the physical geometry and size of regions are distorted to represent a specific statistical variable rather than actual land area.