Every time you open a fully stocked fridge, you are experiencing something that millions of people worldwide do not have guaranteed access to. Food security occurs when all individuals have physical, social, and economic access to sufficient, safe, and nutritious food at all times.
Tanzania currently faces significant food challenges, ranking 89th out of 116 countries on the Global Hunger Index (GHI). Historically, severe droughts in the 1970s forced the country to import 90% of its wheat, prompting the government to launch massive national-scale interventions to feed its growing population.
To combat the food crisis, Tanzania partnered with Canada in a massive top-down strategy. Canada provided $95 million in aid to transform 26,400 hectares of the Hanang District into a highly mechanised wheat farm using imported tractors, chemical fertilisers, and drought-resistant seeds.
The Southern Agricultural Growth Corridor of Tanzania (SAGCOT) is a modern growth corridor project covering one-third of the mainland. Backed by over $1.14 billion from public-private partnerships (including governments and TNCs like Unilever), it aims to link the fertile southern highlands to the port of Dar es Salaam.
Exam questions frequently ask you to evaluate a historical attempt to achieve food security against a modern one to see which is more effective at a national scale.
| Strategy | Description | Pros | Cons |
|---|---|---|---|
| The Green Revolution (Past) | Launched in the 1960s, introducing biochemical inputs like High-Yielding Varieties (HYVs) of seeds, alongside mechanical inputs like tractors and irrigation. | Prevented mass famine globally. Crop yields jumped 40% within five years (e.g., India's grain output reached 131 million tons). | Extremely expensive, leading to widespread farmer debt and suicides. Caused severe environmental damage (salinisation from over-watering and eutrophication from chemicals). |
| GM Crops (Present) | Splicing genes from one species to another to create enhanced varieties (e.g., Golden Rice with added vitamins, or pest-resistant Bt Cotton). | Can boost yields by 20–30% and reduce the need for chemical pesticides. Globally, cultivation reached 190.4 million hectares by 2019. | TNC monopolies mean seeds are patented; farmers cannot save seeds and face spiralling debt. Hyper-efficient weed removal has been shown to decrease local biodiversity. |
Concluding Judgement: Both strategies effectively increase the Availability of food on a massive scale. However, they both struggle with Access, as the high costs of seeds and chemicals often push poorer farmers into debt. GM crops arguably offer a more targeted modern solution (like adding Beta-Carotene to prevent blindness), but the Green Revolution's legacy of preventing global famine in the 20th century makes it historically more impactful in terms of raw calorie provision.
Currently, 25% of the world's food supply is traded internationally. Countries leverage their varied climates to grow crops efficiently and export them.
Students often confuse the pillars of food security. 'Availability' means the food physically exists (e.g., grown in a field), while 'Access' means people actually have the money and transport to obtain it. A strategy might improve one but worsen the other.
In 8-mark 'Evaluate' questions comparing food security strategies, examiners expect a justified concluding judgement. Do not just list pros and cons; you must explicitly state which strategy was more effective overall and provide a reason why.
Always link large-scale agricultural strategies back to the 'Nexus' — for example, explain how increasing food production via SAGCOT's irrigation schemes negatively impacts local water security for nomadic tribes.
When discussing the Tanzania-Canada Wheat Program, specifically mention the 'Barabaig' people to show examiners you have detailed, specific case study knowledge regarding social impacts.
Food security
When all people at all times have physical, social, and economic access to sufficient, safe, and nutritious food to maintain a healthy life.
Availability
The physical presence of sufficient quantities of food through domestic production, stocks, or imports.
Access
Having the necessary economic and physical resources to obtain appropriate foods for a nutritious diet.
Utilisation
The way the body uses food, influenced by food preparation, diet diversity, and access to clean water and sanitation.
Stability
The condition where food availability, access, and utilisation are guaranteed even during crises or sudden shocks.
Food deficit
When a country cannot produce enough food to feed its own population and must rely heavily on imports.
Food surplus
When a country produces more food than its population requires, allowing the excess to be exported.
Global Hunger Index (GHI)
A metric used to comprehensively measure and track hunger at global, regional, and national levels.
Top-down strategy
Large-scale, expensive, capital-intensive projects managed by governments or large corporations with little input from local communities.
Appropriate technology
Equipment and methods that are suited to the wealth, skills, and environmental conditions of the local people using them.
Barabaig
A semi-nomadic ethnic group in Tanzania who were displaced from their grazing lands by the Tanzania-Canada Wheat Program.
Growth corridor
A specific geographical area targeted for infrastructure investment to stimulate economic clusters and improve trade routes.
TNC
Transnational Corporation; a large company that operates in multiple countries, often dominating global food and seed markets.
Nexus
The interconnection and interdependence between food, water, and energy security.
The Green Revolution
A period starting in the 1960s characterised by the introduction of high-yielding crop varieties, biochemicals, and mechanisation.
Biochemical
In agriculture, this refers to inputs like chemical fertilisers, pesticides, and High-Yielding Varieties (HYVs) of seeds.
Mechanical
In agriculture, this refers to physical machinery inputs such as tractors, combine harvesters, and large-scale irrigation systems.
GM Crops
Genetically Modified crops; plants whose DNA has been altered using engineering to provide specific traits like pest resistance or higher yields.
Food miles
The distance food travels from producer to consumer, used as a measure of environmental impact and carbon footprint.
Put your knowledge into practice — try past paper questions for Geography B
Food security
When all people at all times have physical, social, and economic access to sufficient, safe, and nutritious food to maintain a healthy life.
Availability
The physical presence of sufficient quantities of food through domestic production, stocks, or imports.
Access
Having the necessary economic and physical resources to obtain appropriate foods for a nutritious diet.
Utilisation
The way the body uses food, influenced by food preparation, diet diversity, and access to clean water and sanitation.
Stability
The condition where food availability, access, and utilisation are guaranteed even during crises or sudden shocks.
Food deficit
When a country cannot produce enough food to feed its own population and must rely heavily on imports.
Food surplus
When a country produces more food than its population requires, allowing the excess to be exported.
Global Hunger Index (GHI)
A metric used to comprehensively measure and track hunger at global, regional, and national levels.
Top-down strategy
Large-scale, expensive, capital-intensive projects managed by governments or large corporations with little input from local communities.
Appropriate technology
Equipment and methods that are suited to the wealth, skills, and environmental conditions of the local people using them.
Barabaig
A semi-nomadic ethnic group in Tanzania who were displaced from their grazing lands by the Tanzania-Canada Wheat Program.
Growth corridor
A specific geographical area targeted for infrastructure investment to stimulate economic clusters and improve trade routes.
TNC
Transnational Corporation; a large company that operates in multiple countries, often dominating global food and seed markets.
Nexus
The interconnection and interdependence between food, water, and energy security.
The Green Revolution
A period starting in the 1960s characterised by the introduction of high-yielding crop varieties, biochemicals, and mechanisation.
Biochemical
In agriculture, this refers to inputs like chemical fertilisers, pesticides, and High-Yielding Varieties (HYVs) of seeds.
Mechanical
In agriculture, this refers to physical machinery inputs such as tractors, combine harvesters, and large-scale irrigation systems.
GM Crops
Genetically Modified crops; plants whose DNA has been altered using engineering to provide specific traits like pest resistance or higher yields.
Food miles
The distance food travels from producer to consumer, used as a measure of environmental impact and carbon footprint.