Global food demand to surge 35-56% by 2050, impacting food security projections.

Why It Matters

Designers and engineers must consider these macro-level resource shifts when developing solutions related to food production, distribution, and consumption. Understanding future demand helps in designing resilient systems and products that can adapt to changing environmental and societal pressures.

Key Finding

Global food demand is expected to rise significantly by 2050, with varying impacts on the number of people facing hunger, influenced by socio-economic factors and climate change.

Key Findings

• Global food demand is projected to increase by 35% to 56% between 2010 and 2050 across five representative socio-economic scenarios.
• The population at risk of hunger is projected to change by -91% to +8% over the same period under these scenarios.
• Climate change impacts lead to slightly wider ranges for food demand (+30% to +62%) and population at risk of hunger (-91% to +30%), but without statistically significant overall differences compared to non-climate scenarios.

Research Evidence

Aim: What are the projected ranges for global food demand and the population at risk of hunger between 2010 and 2050 under various socio-economic and climate change scenarios?

Method: Systematic literature review and meta-analysis

Procedure: Reviewed 57 global food security projection and quantitative scenario studies published in the last two decades, analyzing their methods, drivers, indicators, and projections.

Sample Size: 57 studies

Context: Global food security and resource projection

Design Principle

Design for future resource availability and demand fluctuations.

How to Apply

When designing new food production technologies, supply chain systems, or consumer products related to food, use these demand projections to inform scale, capacity, and resilience planning.

Limitations

Projections are subject to the uncertainties inherent in socio-economic and climate modeling; the review's findings are based on existing published studies, which may have their own methodological limitations.

Student Guide (IB Design Technology)

Simple Explanation: By 2050, we'll need a lot more food, and how many people are hungry could change a lot depending on how society and the climate evolve.

Why This Matters: Understanding future global needs for resources like food helps you design solutions that are relevant and impactful in the long term, rather than just for today.

Critical Thinking: How might different socio-economic development pathways (e.g., increased global cooperation vs. increased nationalism) influence the actual realization of these food demand projections and the population at risk of hunger?

IA-Ready Paragraph: This research indicates a significant projected increase in global food demand by 2050, ranging from 35% to 56%, alongside potential shifts in food insecurity. This highlights the critical need for innovative design solutions in food production and distribution systems that can meet escalating demands and adapt to uncertain future conditions, thereby ensuring greater global food security.

Project Tips

• When researching a design problem, look for data on future resource availability and demand.
• Consider how your design might perform under different future scenarios, especially those involving resource constraints.

How to Use in IA

• Use this research to justify the need for your design solution by highlighting projected resource challenges.
• Incorporate the projected demand increase into your design specifications and performance targets.

Examiner Tips

• Demonstrate an understanding of the broader context of resource availability and demand when evaluating design solutions.
• Ensure that design choices are justified by evidence of future needs and potential challenges.

Independent Variable: ["Socio-economic scenarios","Climate change scenarios"]

Dependent Variable: ["Total global food demand","Population at risk of hunger"]

Controlled Variables: ["Time period (2010-2050)","Methodological approaches of reviewed studies"]

Strengths

• Meta-analysis synthesizes findings from a large number of studies, providing a robust overview.
• Inclusion of both socio-economic and climate change scenarios offers a comprehensive view of potential futures.

Critical Questions

• To what extent do the reviewed studies account for technological advancements in food production that could mitigate demand increases?
• How do regional disparities in food production and consumption affect the global averages presented?

Extended Essay Application

• Investigate how a specific technology (e.g., vertical farming, alternative proteins) could contribute to meeting projected food demand increases by 2050.
• Analyze the potential impact of climate change on the feasibility of current food production methods in a specific region and propose design adaptations.

Source

A meta-analysis of projected global food demand and population at risk of hunger for the period 2010–2050 · Nature Food · 2021 · 10.1038/s43016-021-00322-9