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Biological factors affecting food security - Edexcel Food prices

Factors such as the increase in human population, new pests and pathogens and armed conflict, can result in food scarcity. Improved farming techniques and sustainable fisheries can help increase supply.

Part of Biology (Single Science)Ecosystems and material cycles

Food prices

The United Nations identified the COVID-19 pandemic, armed conflicts and weather shocks as reasons for more people facing hunger in recent years. They estimate that over 700 million people faced hunger in 2022. They also estimate that three billion people could not afford a healthy diet in the same year. This is just under ten percent of the World鈥檚 population. The United Nations report that one third of adults that live in rural areas experienced moderate or severe food insecurity. Around one quarter did in urban areas.

In all parts of the World, food insecurity affects women more severely than men. The United Nations reported that this figure was around 2.4% more likely for women in 2022, which is a reduction from 3.8% the year before.

Food insecurity varies depending upon region. The United Nations have reported that moderate or severe food insecurity rose slightly in Africa, North America and Europe in 2022. It remained similar in Asia but reduced by over 15 million people in Central and South America.

The United Nations estimates the proportion of undernourished people each year. The data in this table is from their publication, The State of Food Insecurity and Nutrition in the World 2023.

A graph showing the percentage of people undernourished across 5 continents from 2010 to 2022.

Question

Describe any trends you can in this data over time. Use numbers in your answer. [4 marks]

A country is in crisis if a significant part of the is vulnerable to death or disease.

They compare this with different factors and produce an annual report called 鈥楾he state of food insecurity in the world鈥. The graphs below come from the 2015 report.

Question

What is the relationship between countries in crisis and all developing countries? Use numbers in your answer.