As the global population moves towards 10 billion people, one question looms increasingly large: how are we going to feed everyone?
At first glance, the answer seems obvious. More people means we need more food, which means agriculture needs to become more productive. We need higher yields, better technologies and more efficient farming systems capable of producing enough calories for a growing and increasingly urbanised population.
But what if producing enough food isn’t actually the biggest problem?
Agricultural lecturer Saba Sinai argues that the challenge of feeding humanity is far more complicated than simply increasing production. Food insecurity is shaped by everything from poverty and affordability to infrastructure, food waste, climate change, conflict and the resilience of local communities.
That means the future of food isn’t simply an agricultural challenge. It is an economic, social and political one too.
We already produce enough food
One of the most important things to understand about food insecurity is that hunger does not necessarily mean there isn’t enough food.
Speaking with Voices of the New Economy, Sinai points out that globally, we already produce enough food per person to feed the population. Yet hundreds of millions of people continue to experience hunger.
The problem is partly about where food is produced, whether people can access and afford it, and what happens to it between the farm and the dinner table.
And those problems look very different depending on where you live.
In higher-income countries such as Australia, significant amounts of food can be lost because produce doesn’t meet cosmetic standards or because consumers purchase food that is ultimately thrown away. A perfectly edible vegetable may never reach the supermarket shelf because of its appearance, while another might make it all the way into someone’s refrigerator only to end up in the bin a week later.
In lower-income contexts, food can be lost for very different reasons. Insufficient transport infrastructure, storage facilities or refrigeration can mean food deteriorates before reaching the people who need it.
In both situations, food has already been produced. Land, water, energy and human labour have already been used.
Producing even more doesn’t necessarily solve the underlying problem.
Food security is also about affordability
Having food available somewhere within an economy doesn’t mean everyone can afford to eat it.
This becomes particularly important when we distinguish between having enough calories and being able to afford a healthy and diverse diet. Highly processed foods can sometimes be relatively accessible while nutritious fresh foods remain financially out of reach.
Food security therefore cannot be separated from wider questions about poverty and inequality.
A household’s ability to eat well depends not only on what farmers grow, but on income, housing and other living costs, transport, market access and the price of food itself. The cost of that food, in turn, can be shaped by fuel, fertiliser, energy, labour, transport and the distance between producers and consumers.
The result is a problem that agricultural technology alone cannot solve.
Better crops or more efficient farming practices may form part of the response, but socioeconomic solutions matter too. If nutritious food exists but people cannot afford it, increasing agricultural productivity does not automatically eliminate hunger.
Local food systems can strengthen resilience
The modern food system allows people to eat products grown thousands of kilometres away. Australia itself exports a substantial proportion of the food it produces, connecting Australian farmers with consumers around the world.
There are enormous benefits to these networks. Trade allows regions to access foods they cannot efficiently produce themselves and enables agricultural communities to sell into much larger markets.
But long supply chains can also introduce vulnerabilities and costs.
Every additional stage between producer and consumer requires infrastructure, energy and coordination. Food may need to be processed, refrigerated, stored and transported across enormous distances before reaching someone’s plate.
This is where local food systems become particularly important.
Localisation doesn’t necessarily mean every community attempting to become completely self-sufficient or abandoning global trade. Instead, it can mean strengthening the capacity of communities and regions to meet more of their own needs while remaining connected to wider systems.
Local production can shorten some supply chains, strengthen relationships between producers and consumers and reduce dependence on distant infrastructure. It can also create additional layers of resilience when larger systems are disrupted.
Rather than choosing between the local and global, a resilient food future may require us to think across multiple scales.
Climate change is putting additional pressure on food systems
All of this is happening as the environmental conditions underpinning agriculture become increasingly uncertain.
Agriculture is inherently dependent upon ecological systems. Temperature, rainfall, water availability, soil health and seasonal patterns all influence what can be grown, where it can be grown and how productive farms can be.
Small changes can have significant consequences.
An increase in average temperature of a few degrees may not sound dramatic in everyday life, but crops depend upon particular environmental conditions at particular stages of their development. Changes in daytime and nighttime temperatures can affect growth, while droughts, floods, fires and other disasters can destroy crops and livestock altogether.
The challenge is not simply that individual disasters occur. Repeated or increasingly severe disruptions can reduce the time farmers and communities have to recover before the next shock arrives.
These pressures can then flow through the food system. Lower yields, damaged infrastructure and increasing production costs can contribute to higher food prices, further affecting people already struggling to afford healthy diets.
Climate resilience therefore becomes inseparable from food security.
War is a food systems issue
There is another driver of food insecurity that receives less attention in everyday conversations about sustainable agriculture: conflict.
Modern agriculture depends upon global flows of resources. Fuel powers farm machinery and transports food. Fertilisers support production across large parts of the world. Agricultural commodities themselves move through international shipping routes and markets.
Conflict can disrupt all of them.
Wars can constrain transport routes, increase fuel and fertiliser costs, destroy infrastructure and displace farming communities. People who once produced food for themselves and others may suddenly become dependent upon assistance themselves.
Conflict can also consume the institutional, financial and human resources that might otherwise be directed towards development and strengthening food systems.
And its effects can continue long after fighting ends. Damaged infrastructure, displacement, trauma and even unexploded ordnance and landmines can prevent communities from returning land to productive use for years or decades.
Seen through this lens, peace is not separate from food policy.
It is part of it.
If food security depends upon stable communities, functioning infrastructure, accessible resources and cooperation between regions, then reducing conflict becomes one of the conditions through which resilient food systems can emerge.
Agriculture has always depended upon cooperation
It can be tempting to imagine agriculture as something fundamentally local: a farmer working a particular piece of land to feed a nearby community.
But agriculture has always involved the movement of ideas.
Human societies have spent thousands of years sharing crops, practices, technologies and knowledge. Agricultural innovations developed in one community have travelled to others, been adapted to different environments and become part of new food cultures.
Our contemporary food systems did not emerge by accident. They are the product of generations of experimentation, learning, cooperation and ingenuity.
That matters as we look towards the challenges ahead.
Circular economy approaches, regenerative agriculture, better water management, resource efficiency and technological innovation may all contribute to future food security. But the solutions themselves are only part of the story.
We also need the social capacity to share them.
A fragmented world in which communities and countries cannot cooperate makes solving global challenges considerably harder. Feeding billions of people, adapting agriculture to changing climates and improving food access across vastly different contexts require knowledge to move between people.
Food security is therefore partly a question of whether we can maintain and strengthen the relationships through which collective learning occurs.
Community may be one of our most important forms of infrastructure
This brings the conversation back to the local level.
When we talk about infrastructure for food security, we might think about roads, irrigation systems, storage facilities, ports or refrigeration. All are important.
But communities themselves are also infrastructure.
Strong communities can share knowledge, organise resources, respond to disasters and develop solutions suited to their particular conditions. Farmers can learn from one another. Communities can identify gaps in local food systems. Governments and institutions can work alongside the people directly affected by their decisions.
This also changes how we think about the process of creating a better food system.
Sinai argues that it is easy to become prescriptive about the future: to decide that a particular technology, economic model or policy is the solution and then attempt to implement it.
But the way change happens matters too.
Justice, consultation and meaningful participation become important not simply because they are desirable values, but because communities themselves hold knowledge about their circumstances, priorities and needs.
The question is not only what should the future food system look like?
It is also who gets to help create it?
Feeding the future means thinking beyond the farm
There is plenty to be concerned about when we look towards the middle of this century. A larger population will need to be fed while climate change places additional pressure on agriculture, urbanisation reshapes how people interact with food systems and conflicts continue to disrupt communities and international supply chains.
But there are also reasons for optimism.
Farmers have always adapted.
Agricultural communities continually experiment with new technologies, practices and ways of responding to difficult conditions. Researchers are developing new approaches to agricultural challenges. Younger generations entering the sector are bringing different ideas about sustainability and the future of food.
Humanity has transformed its food systems many times before.
The challenge now is ensuring that our next transformation addresses more than production.
Feeding 10 billion people will require us to think about where food is grown, how much is wasted, whether healthy diets are affordable, how resources are distributed, how communities withstand disruption and how agriculture adapts to a changing climate.
It will require local action and international cooperation. Scientific innovation and social change. Efficient use of resources and stronger communities.
And perhaps most importantly, it will require us to stop treating hunger as simply a problem of not having enough food.
The deeper challenge is creating food systems capable of getting nutritious food to everyone who needs it while remaining resilient within the ecological limits and social realities of a changing world.
The question, then, isn’t only whether humanity can produce enough food for 10 billion people.
It is whether we can build the relationships, institutions and systems needed to ensure that everyone gets to eat.
