Food Security (Cambridge (CIE) AS Environmental Management)
Revision Note
Written by: Alistair Marjot
Reviewed by: Bridgette Barrett
Causes of Food Insecurity
Food security can be defined as when all people, at all times, have physical, social and economic access to sufficient, safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life
Food insecurity (i.e. a lack of food security) remains a pressing global issue, impacting millions of individuals and communities worldwide:
Understanding the underlying causes and threats to food security is essential for creating effective solutions to address this complex challenge
What are the causes of food insecurity?
Population growth:
Rapid population growth places increased pressure on food systems, leading to greater demand for food resources
As populations expand, there is a heightened need for sustainable agricultural practices to meet growing food needs
Unsustainable production and homogeneity in global food supply:
Intensive farming practices and monoculture crops contribute to soil degradation, loss of biodiversity and reduced resilience in food systems
Dependence on a limited number of crops for global food supply increases vulnerability to crop failures and pests
Price setting:
Fluctuations in food prices, influenced by factors such as supply and demand dynamics, market speculation and trade policies, can lead to affordability challenges for vulnerable populations
Price volatility affects access to healthy, nutritious foods, increasing food insecurity
Land degradation:
Soil erosion, deforestation and unsustainable land management practices degrade arable land, diminishing its productivity and limiting agricultural output over time
Land degradation reduces the availability of fertile land for cultivation, contributing to food insecurity
Agricultural diseases:
Outbreaks of plant and animal diseases, such as crop pests, livestock infections and pathogens, pose significant threats to agricultural production
Disease outbreaks can devastate crops and livestock populations, disrupting food supply chains and leading to shortages
Diverting crops for biofuels:
The diversion of food crops for biofuel production reduces the availability of agricultural resources for food production
Competition between food and fuel crops can drive up food prices and exacerbate food insecurity, particularly in regions reliant on imported food
Climate change:
Changing climatic patterns, including extreme weather events, droughts, floods and temperature variations, disrupt agricultural systems and food production
Climate-induced crop failures, water scarcity, and ecosystem shifts threaten food security, particularly in already vulnerable regions
Water shortages:
Limited access to clean water for irrigation and agricultural purposes hinders agricultural productivity and food production
Water scarcity exacerbates food insecurity, affecting crop yields, livestock health and food-processing activities
Poverty:
Poverty is a fundamental driver of food insecurity, as low-income households often lack the financial resources to access an adequate and nutritious diet
Economic disparities, unemployment and income inequality contribute to food insecurity, perpetuating cycles of poverty and hunger
Impacts of Food Insecurity
Food insecurity has far-reaching consequences, affecting individuals, communities and entire regions worldwide
Understanding the many impacts of food insecurity is crucial for addressing its root causes and implementing effective solutions
What are the impacts of food insecurity?
Regional food scarcity:
Food insecurity leads to regional shortages of food supplies, particularly in areas with limited agricultural productivity or disrupted food distribution networks
Scarce food resources increase hunger and malnutrition, impacting vulnerable populations including children, pregnant women and the elderly
Nutritional deficiency and malnutrition:
Inadequate access to nutritious foods contributes to nutritional deficiencies and malnutrition, particularly among populations facing food insecurity
Malnutrition can manifest as stunted growth, micronutrient deficiencies (e.g. deficiencies in iron, vitamin A) and impaired cognitive development, leading to long-term health consequences
Poverty:
Food insecurity perpetuates cycles of poverty, as households struggle to afford adequate and nutritious food
Spending a significant portion of income on food leaves little for other essential needs, such as healthcare, education and housing, further entrenching poverty
Forced migration:
Food insecurity can drive forced migration, as individuals and communities seek food and livelihood opportunities in regions with greater food security
Environmental degradation, conflict and economic instability contribute to displacement of human populations:
This can put a strain on resources in host communities (i.e. the places where people immigrate to)
Conflict:
Food insecurity is often driven by a range of political, social, and economic factors surrounding conflicts over scarce resources, land and water
Competition for food resources can escalate tensions and fuel instability, leading to social unrest, violence and displacement of populations
Famine:
Severe food shortages and widespread hunger can escalate into famines, characterised by acute food crises and high mortality rates
Famine conditions result from a combination of factors, including crop failures, inadequate humanitarian assistance and political barriers to food distribution
Death:
Food insecurity and famine contribute to increased mortality rates, particularly among vulnerable populations, including children, the elderly and individuals with pre-existing health conditions
Lack of access to adequate food and nutrition leads to weakened immune systems, susceptibility to diseases and premature death, exacerbating the humanitarian toll of food insecurity
Case Study
Yemen
Located on the south-east of the Arabian Peninsula
Yemen has a mainly hot desert climate with a temperate climate in the western mountains
In summer months temperatures reach 40℃ and there is little rainfall
Winter months are cooler between 25-35℃ but with little rainfall
Agriculture
There is increasing agricultural activity in Yemen with crops including:
Millet
Corn
Wheat
Barley
Sorghum
Other crops include coffee, cotton and fruit, which were grown for export
Over 73% of the population relies on agriculture as their main source of income
Causes of food shortages
Conflict:
In 2015 after years of internal conflict, civil war broke out
Continued conflicts have led over 4 million Yemenis to be displaced
Food aid supplies have been affected by blockades at the ports intended to stop weapons entering the country
Internal infrastructure (roads, airports and communication) has also been affected by the conflict, which stops the movement of food around the country
Drought:
In recent years drought has further affected supplies
The main crop growing areas have received only one third to a half of the usual precipitation
Pests:
In 2019 swarms of locust hit Yemen, destroying many of the crops
The conflict had affected the control and monitoring program
Lack of pesticides meant that the Yemeni struggled to control the insects
Corruption:
Food aid is taken by those involved in the fighting and those in power
It often does not reach those who need it most
Population increase:
The population has increased to almost 30 million from 26.5 million in 2015
This increases the demand for food
Effects of food shortages
The Yemeni economy has declined
These issues have mostly happened in the crop growing areas in the south-west
In 2016 it is estimated that farm produce losses totalled US$964.5 million
Yemen became dependent on imports for 90% of its grain supplies - much of this was from Ukraine, the supply of which has been affected by the Russian invasion
More than 80% of the population live below the poverty line
50% of the population working in agriculture have lost their jobs
Food prices have increased between 30-70% meaning people cannot afford a healthy diet
The UN estimates more than 226 000 Yemeni have died due to food shortages and lack of health services
Acute malnutrition now threatens over 50% of children under 5
The total number of food insecure population is expected to reach 19 million by the end of 2022
Solutions
Since the start of the conflict billions in aid has been sent to Yemen through organisations such as:
UNICEF
Red Cross
World Food Program
Oxfam
Getting aid to the people who need it is challenging for the reasons outlined in "causes" above
The World Food Program provides 13 million people with food assistance through:
Rations
Vouchers
Cash transfers
Until the end of the conflict the food shortages are likely to continue and may even get worse
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