City Farms and Food Justice

Episode Narrative

In a world of shifting landscapes and intertwined destinies, agriculture has always been a driving force, shaping societies and economies. Today, we delve into a narrative that spans over three decades — from 1991 to 2025 — focusing on city farms and the quest for food justice across the globe. This story unfolds in urban gardens, rural fields, bustling markets, and in the hearts of communities striving for sustenance and equality.

Let us journey to Ethiopia and Kenya, where from 1991 to 2022, agricultural land, education, and food production blossomed, significantly increasing family incomes. In stark contrast, Nigeria offers a different tale. Here, agricultural land failed to predict income, highlighting a poignant disconnect. The landscape was painted with challenges, as the very crops that could offer prosperity fell short due to a myriad of barriers. Meanwhile, in South Africa, the situation was equally restrictive. Education and food production alone did not translate to enhanced economic well-being. These regional disparities reveal the complex tapestry of agriculture’s role in economics across the continent, reminding us that mere land and education cannot guarantee prosperity without the right support systems.

As we broaden our horizon to the global stage, we witness a remarkable transformation in the food trade networks between 1992 and 2018. These networks became intricate webs, tightly woven and complex, as developed agricultural countries began exporting food to compensate for shortages in around 120 net grain-importing nations. The growing dependence on international trade for food security creates a nuanced landscape of vulnerability. In this interconnected system, one disruption — be it environmental or political — can send shockwaves across continents, affecting those who rely on imports for sustenance.

In recent years, our diets have also undergone a significant evolution. From the late 1990s through the 2020s, more than half of the world's population began consuming high levels of animal-source foods, a trend that soared from just 33%. This shift reflects a global dietary transformation, one that is both resource-intensive and indicative of rising affluence, particularly in emerging economies. In the backdrop of this dietary shift, the gains in per capita daily calorie supply across thirty-eight OECD countries signal a transition towards rich, animal-based diets. Here we stand at the intersection of wealth, health, and ethics as we confront the food choices that shape our lives.

But the path to sustainable agriculture is not solely paved with advancements in consumer habits. The years from 2010 to 2025 heralded innovations such as hydroponic and vertical farming systems. Farmers harnessed technology to achieve yields up to 6.88 kg per square meter, all while using 90% less water than traditional farming methods. These innovations unveiled a future where societies in urban and water-scarce regions could reclaim the land, establishing food systems that align with the realities of modern living. Rooftop gardens and community-supported agriculture blossomed, providing fresh produce in areas once deemed food deserts. In many ways, these movements have become beacons of hope, offering fertile ground for food justice.

Yet, as we celebrate these advancements, we cannot ignore the dual-track bioeconomy emerging around 2015. Here, green and blue resources — those derived from plants and algae — emerged as sustainable alternatives to conventional livestock. This shift serves not just as a means of nutrition but as a response to an urgent call for reduced greenhouse gas emissions, lower land use, and a minimized water footprint. It connects us to a vision of the future — where innovation meets ecological responsibility.

As the global narrative continued to unfold, cocoa production faced scrutiny not only for its economic implications but for its environmental impact. Between 2019 and 2025, the industry began adopting sustainable practices to reduce deforestation and resource consumption. By focusing on soil improvement and waste valorization, cocoa producers started to balance profitability with environmental stewardship, underscoring a vital lesson in the interconnectedness of economic and ecological health.

In the year 2020, global food production peaked at an energy equivalent of 5,000 kilocalories per person per day. However, the chasm between the richest and the poorest persisted, as per capita consumption varied fourfold. This stark discrepancy emphasizes a haunting reality: despite sufficient global calorie production, populations remain undernourished due to inequitable distribution and entrenched poverty. A paradox unfolds within today’s food system — one where calories are ample but access remains a distant dream for many.

In the geopolitical theater, the war between Russia and Ukraine reverberated across food markets from 2021 to 2023, disrupting grain and oilseed exports and resulting in soaring prices. Countries, especially in Africa and the Middle East, found themselves vulnerable, relying heavily on imports that suddenly became fraught with uncertainty. This conflict is a stark reminder of how fragile our food systems can be, revealing vulnerabilities within the global web of trade and the critical need for local resilience.

Even the climate crisis has entered this intricate dance, a relentless force impacting food availability. The gradual decay of global consumable food calories saw a reduction of about 1% across ten major crops in 2022 alone. Food-insecure countries bore the brunt, with diminished caloric availability becoming a dire symptom of an overheating planet. Here we grasp a critical point: climate change does not just change weather patterns; it alters the very fabric of human survival, tying agriculture irrevocably to the health of our planet.

By 2023, the poultry industry witnessed unprecedented production levels yet suffered harsh consequences from heat stress due to climate factors. The financial strain reached $2.36 billion for the U.S. chicken industry, prompting urgent adaptations toward heat-resistant breeds and more sustainable practices. Integrating resilience into farming practices has become not just an option but a necessity for survival.

As we gaze into 2024 and beyond, we see a landscape still marked by persistent regional shortfalls in essential nutrients — fruits, vegetables, proteins. While grains, fats, and sugars are overproduced globally, the foods needed for a healthy diet continue to fall through the cracks of our agricultural systems, presenting pressing questions of equity and health.

The year 2025 will see the launch of the Australian Journal of Agricultural, Veterinary and Animal Sciences, solidifying Australia’s position as a pioneer in ethical livestock production and food security research. Such initiatives serve as vital reflections of a world striving toward innovation, advocating for humane and sustainable practices that honor both animals and the environment.

Yet, as we recount these shifts in agriculture and food justice from 1991 to 2025, we must return to our smallholder farmers in southern Nigeria. Despite the growth and change elsewhere, they remain ensnared in challenges — limited market access, poor extension services, pest issues, and insufficient loans. The food security status of these farmers varies significantly, influenced by age, education, and regional factors. Their struggle encapsulates the ongoing battle many face within a global system that can feel unyielding.

The story of agriculture’s evolution reveals an essential truth: food systems are as diverse as the communities they serve. Urban agriculture, innovations like hydroponics and aquaponics, have newly emerged as crucial tools for addressing food justice. The phrase “food sovereignty” echoes in urban centers, embodying the desire for communities to reclaim control over their food sources, ensuring that everyone has access to nutritious food.

As we reflect on the events of the past thirty-four years, one must ponder the legacy we will leave behind. How will we integrate the lessons learned from our rapidly changing world? Will we forge a future where food justice is not just an aspiration but a reality? Our journey does not end here. The seeds of hope are sown in every urban garden, in every community that champions food sovereignty, and in every innovative practice that seeks to nourish both people and the planet.

This narrative, rich in lessons and challenges, compels us to act. A closing image lingers in the mind — the vibrant cheery greens of urban farms, a testament not just to food production but to resilience, solidarity, and the promise of a just and equitable future. As we move forward, let us remember that every bite we take nourishes not only our bodies but our collective journey toward justice, sustainability, and community. The question now remains — how will we nurture this journey for generations to come?