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By the Numbers: Reducing Food Loss and Waste

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:

Reducing Food Loss and Waste

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. "...

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Food

The Great Balancing Act

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...

A New Tool to Measure and Reduce Emissions from Agriculture

Agriculture is a major actor in spurring global climate change. The sector is already responsible for at least 10-12 percent of global greenhouse gas (GHG) emissions, and agricultural emissions are expected to increase by more than 50 percent by 2030.

Mitigating agricultural emissions, then, could go a long way toward mitigating global climate change. The Greenhouse Gas Protocol is currently developing an Agricultural Guidance to help companies measure and reduce their agricultural emissions. We’ve just released a second draft of the Guidance for open comment period, which will run until May 31, 2013.

Key Challenges to Measuring Agricultural Emissions

Reporting agricultural emissions in GHG inventories is a decidedly complex endeavor, which can hinder reduction efforts. For example, agricultural emissions are strongly affected by weather and are therefore often calculated with a large amount of uncertainty. This ambiguity makes it challenging to set and track progress toward reduction targets. The carbon stored in biomass and soils can often be emitted into the atmosphere, making it imperative that companies do not over- or under-count the impact of farming practices on stored carbon. And companies vary widely in how they control different parts of agricultural supply chains—such as commodity production, processing, and retail —so it’s difficult to maintain consistency in how inventories are reported.

5 Sobering Realities about Global Water Security

Some people say that water is the oil of the 21st Century. If only water were that simple.

Water is very complicated. It’s affected by large-scale issues like climate change and globalization. International commerce moves virtual water (the water it takes to grow or produce a product) from farms in Brazil to grocery stores in China and Egypt.

But water is also inherently local, impacted by site-specific weather, geography, and other environmental and land use conditions. Managing and using water, then, requires understanding it in its full geographic context.

Today, WRI is launching its new Aqueduct mapping tool to do just that. Aqueduct provides businesses, governments, and other decision makers with the highest-resolution, most up-to-date data on water risk across the globe. Armed with this information, these decision-makers can better understand how water risk impacts them—and hopefully, take actions to improve water security.

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