The short answer is that the world can probably produce enough food to feed everyone in 2050, but only if several things go right at once. The global population is expected to reach 9.8 billion by 2050, up from about 8 billion today, and feeding that many people will require roughly doubling current crop production. Right now, we’re not on track to hit that target.
The Gap Between Yield Growth and Demand
The core math problem is straightforward. To double global crop production by 2050 without clearing new farmland, yields for major staple crops would need to improve by about 2.4% per year. The actual rates fall well short of that. Maize yields are growing at 1.6% per year, rice at 1.0%, wheat at 0.9%, and soybeans at 1.3%. Those are non-compounding rates, meaning they don’t build on each other the way interest does. The gap between where yields are heading and where they need to be is significant, and it’s been persistent for years.
This doesn’t mean famine is inevitable. It means the world will likely need a combination of strategies: higher yields, less waste, dietary changes, and some expansion of farmland. No single solution closes the gap on its own.
Climate Change Is Already Dragging Yields Down
Making the yield problem harder is the fact that climate change is working against farmers. By 2050, rising temperatures are expected to reduce global crop yields by about 8%, according to research from Stanford. That estimate holds regardless of how aggressively the world cuts emissions between now and then, because the warming already locked in from past emissions will continue affecting growing seasons, rainfall patterns, and heat stress on plants.
That 8% drag is a global average. Some regions will fare much worse. Areas near the equator, including parts of sub-Saharan Africa and South Asia, face steeper losses because they’re already closer to the temperature limits that crops can tolerate. Meanwhile, some northern regions may see modest gains from longer growing seasons, though those gains come with their own risks, including unfamiliar pests and unpredictable rainfall.
Water and Fertilizer Are Getting Tighter
Agriculture consumes roughly 70% of the world’s freshwater, and the supply picture is getting worse. By 2050, between 2.7 and 3.2 billion people will live in areas facing severe water scarcity. More than half the global population will experience water shortages at least one month per year. For farming, this means irrigation-dependent regions in northern China, India, the western United States, and the Middle East will face harder choices about how to allocate shrinking water supplies.
Fertilizer is another pressure point. Phosphorus, one of the three essential nutrients crops need, will see demand rise 51 to 86% by 2050. Developed countries have built up reserves of phosphorus in their soils over decades of heavy fertilizer use, which provides a buffer. But developing countries, particularly in Africa where population growth is fastest, will need dramatically more fertilizer to boost their agricultural output. Global phosphorus inputs into croplands are projected to climb from about 14.5 million metric tons per year in 2005 to 22 to 27 million metric tons by 2050. Mining and distributing that much phosphorus is feasible but adds cost and environmental strain.
The Meat Problem
Rising incomes in developing countries are shifting diets toward more animal products, and this is one of the biggest multipliers of food system pressure. Demand for animal-based foods is projected to grow 70% by 2050. Beef, lamb, and goat consumption alone could rise 88% over that period. Beef requires about 20 times more land and produces 20 times more greenhouse gas emissions per gram of protein than beans or lentils.
Africa’s population is projected to increase 80% by 2050 relative to 2020, driving a further 20% per capita increase in demand for animal products. Without improvements in livestock productivity, global livestock emissions could reach 9.1 billion metric tons of CO2 equivalent by 2050. Pastureland already accounts for two-thirds of all agricultural land use worldwide, covering about 3.2 billion hectares. There isn’t much room to expand it.
One nuance worth noting: ruminant animals like cattle aren’t purely competing with humans for food. About 90% of what cattle eat in grazing and mixed systems is grass, leaves, silage, and crop residues that humans can’t digest. Ruminants actually need only 0.6 kg of human-edible protein to produce 1 kg of protein, making them net contributors to human-edible protein in some systems. The problem isn’t cattle on grasslands so much as grain-fed livestock operations that convert human-edible crops into meat at a steep efficiency loss.
Can Alternative Proteins Fill the Gap?
Lab-grown (cultured) meat has received enormous attention as a potential solution. Some estimates suggest it could reach price parity with conventional meat by around 2032 in markets like the EU and US. But scaling up production is a different challenge entirely. Experts put the probability of more than 50 million metric tons of cultured meat being sold globally by 2051 at less than 10%. There’s actually a 54% probability that total global sales won’t even reach 100,000 metric tons before then. For context, the world produced 346 million metric tons of conventional meat in 2018.
Plant-based proteins are more likely to make a meaningful dent in the near term, since they require no new technology breakthroughs. But shifting billions of people’s diets is a cultural and economic challenge, not just a technological one.
Where the Biggest Gains Could Come From
Reducing food waste is one of the highest-impact, lowest-cost levers available. Roughly a third of all food produced globally is lost or wasted between the farm and the plate. In developing countries, most loss happens after harvest due to poor storage, lack of refrigeration, and inadequate roads. In wealthy countries, the waste happens at the retail and consumer level: food thrown out by supermarkets and households. Cutting that waste significantly would free up calories without requiring any additional land, water, or fertilizer.
Closing yield gaps is another major opportunity. Many farms in sub-Saharan Africa and South Asia produce far below what the land is capable of, often because farmers lack access to improved seeds, fertilizer, irrigation, or basic infrastructure. Bringing those farms closer to their potential output could add enormous volumes of food to the global supply. Boosting pasture productivity matters too, since even modest improvements in how much food grasslands produce per hectare could reduce pressure to clear forests for new farmland.
The honest answer to whether there will be enough food in 2050 is that it depends on choices being made now. The planet’s biological capacity to feed 10 billion people exists. The question is whether investments in agriculture, reductions in waste, and shifts in consumption patterns happen fast enough to close a gap that, at current trends, remains stubbornly open.