The United Nations’ new population growth projections show that the world is set to reach nearly 9.6 billion by 2050. This growth holds serious implications for global food security. Absent other effective measures to control dietary shifts and reduce food loss and waste, the world will need to produce about 70 percent more food annually by 2050 to meet global demands. That is a big task, and even harder to do without converting millions more hectares of forests into farmland, contributing to climate change.
How can the world feed more than 9 billion people by 2050 in a manner that advances economic development and reduces pressure on the environment? Answering it requires a “great balancing act” of three needs—each of which must be met simultaneously.
Creating a Sustainable Food Future
President Obama is in Africa this week to discuss development, investment, health, and, notably, food security. The trip comes on the heels of the president’s groundbreaking announcement of a U.S. Climate Action Plan. So it’s a fitting time for Obama and other global leaders to take notice of a strategy that addresses both climate change and food security in Africa—re-greening.
Re-greening—a process where African farmers manage and protect trees that grow on their farms, rather than cutting them down—is already beginning to transform the continent’s drylands. Supporting and scaling up the low-tech process can not only increase crop yields in drought-prone regions, it can mitigate climate change and reduce rural poverty.
The History of Re-greening in Africa’s Drylands
Re-greening in Africa first garnered international attention back in 2007, when the New York Times published a front page article entitled “In Niger, Trees and Crops Help Turn Back the Desert.” Lydia Polgreen, who was the NYT’s West Africa bureau chief in those days, had visited Niger and reported “at least 7.4 million newly tree-covered acres.” The NYT article revealed that this large-scale re-greening was not due to expensive tree-planting projects, but was the result of farmers protecting and managing young trees that regenerated on their cultivated land.
This re-greening did not happen everywhere. It was observed in particular in dryland regions with high population densities. Life in dryland areas presents many challenges, and farmers and decision makers are continuously searching for ways to restore their resilience and agricultural productivity.
This post is the third installment of WRI’s blog series, “Creating a Sustainable Food Future.” The series explores strategies to sustainably feed 9 billion people by 2050. All pieces are based on research being conducted for the 2013-2014 World Resources Report.
An amazing 24 percent of all food calories produced today go uneaten. Reducing this loss and waste is a critical step toward generating enough food for a population set to reach more than 9 billion by 2050.
Fortunately, there are low-cost methods that can begin saving food immediately in both the developing and the developed world. WRI’s new working paper, Reducing Food Loss and Waste, identifies a number of these strategies. Some methods cut loss “close to the farm,” while others reduce waste “close to the fork.”
Reducing Food Loss Close to the Farm
Improved storage methods
Simple, low-cost storage methods can drastically cut food loss, especially for small-scale farmers in the developing world, who frequently lose food to factors like pests, spoilage, and transportation damage. For example, a system developed by researchers at Purdue University in which grain is stored in three interlocking plastic bags locks out pests and keeps grain fresh for months. The Food and Agriculture Organization has built more than 45,000 small, metal storage silos—just big enough for use by a single farmer—in 16 different countries. These silos have cut food loss during the storage phase to almost zero. Even using a plastic crate instead of a plastic sack during transport can cut loss dramatically by preventing bruising and squashing.
This post is the second installment of WRI’s blog series, “Creating a Sustainable Food Future.” The series explores strategies to sustainably feed 9 billion people by 2050. All pieces are based on research being conducted for the 2013-2014 World Resources Report. Look for the next installment tomorrow, which will highlight a number of solutions to reduce food loss and waste.
The world produces about 4 billion tons of food per year, or about 6 quadrillion calories. That’s a large amount, but what’s really shocking is that nearly one-quarter of these calories go uneaten.
This food is lost or wasted in a number of ways. It might rot in the fields, get eaten by pests in storage, or be thrown away by a grocer or consumer, just to name a few. It’s a problem that must be mitigated: The world will need about 60 percent more calories per year by 2050 in order to adequately feed the projected population of more than 9 billion people. WRI’s new working paper, Reducing Food Loss and Waste, shows that cutting current rates of food loss and waste in half would reduce the size of this food gap by about 22 percent.
The new paper, part of the ongoing 2013-2014 World Resources Report: Creating a Sustainable Food Future working paper series, looks at the scale of the food loss and waste challenge and examines how we as a global community can start tackling this issue. The paper and tomorrow’s blog post explore a number of practical, affordable strategies for governments, businesses, and households to reduce their loss and waste immediately.
But first, it’s important to understand the extent of the problem. Here are several facts and figures that reveal just how much food the world loses and wastes:
Creating a Sustainable Food Future, Installment Two
About 24 percent of all calories currently produced for human consumption are lost or wasted. This paper examines the implications of this amount of loss and waste, profiles a number of approaches for reducing it, and puts forth five recommendations for how to move forward on this issue. "...
This post is the first installment of WRI’s blog series, “Creating a Sustainable Food Future.” The series explores strategies to sustainably feed 9 billion people by 2050. All pieces are based on research being conducted for the forthcoming World Resources Report.
How can the world feed more than 9 billion people by 2050 in a manner that advances economic development and reduces pressure on the environment? This is one of the paramount questions the world faces over the next four decades.
Answering it requires a “great balancing act” of three needs—all of which must be met simultaneously.
Balancing 3 Needs
- The world needs to close the gap between the amount of food available today and the amount required in 2050. According to new WRI analysis, we’ll need about 60 percent more food calories in 2050 than in 2006 if global demand continues on its current trajectory. This gap is in part a function of increasing population and wealth. The United Nations projects that the global population will likely grow from 7 billion in 2012 to 9.3 billion by 2050. At least 3 billion more people are likely to enter the global middle class by 2030, and they will almost certainly demand more resource-intensive foods like meat and vegetable oils. At the same time, approximately 870 million of the world's poorest people remain undernourished even today.
Creating a Sustainable Food Future, Installment One
How can the world adequately feed more than 9 billion people by 2050 in a manner that advances economic development and reduces pressure on the environment? This is one of the paramount questions the world faces over the next four decades. “The Great Balancing Act” seeks to start answering this...