Study Finds Food Waste Is Third-Largest Greenhouse Gas Source

A new study from the U.N. Food and Agriculture Organization found that the 1.3 billion tons of food wasted every year make it one of the largest sources of greenhouse gas emissions.

1 minute read

September 12, 2013, 7:00 AM PDT

By Jonathan Nettler @nettsj


Reducing food waste can have myriad social, economic, and environmental benefits. But a new report has put a number to the impact on global warming that uneaten food has every year. "The world throws away one-third of food produced yearly, making food waste the third-largest source of greenhouse gas emissions behind those produced by the U.S. and China, according to a U.N. report released Wednesday," writes Ricardo Lopez. "[T]he U.N. estimated the carbon footprint of the problem is equivalent to 3.3 billion tons of carbon dioxide every year."

"All of us -- farmers and fishers, food processors and supermarkets, local and national governments, individual consumers -- must make changes at every link of the human food chain to prevent food wastage from happening in the first place, and re-use or recycle it when we can't," said FAO Director-General José Graziano da Silva. 

Wednesday, September 11, 2013 in Los Angeles Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Close-up of "Apartment for rent" sign in red text on black background in front of blurred building

Trump Administration Could Effectively End Housing Voucher Program

Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

April 21, 2025 - Housing Wire

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Close-up on woman in white and blue striped knee-length dress standing next to mint green cruiser bike resting against low wrought iron fence in front of green lawn.

Paris Voters Approve More Car-Free Streets

Paris Mayor Anne Hidalgo says the city will develop a plan to close 500 streets to car traffic and add new bike and pedestrian infrastructure after a referendum on the proposal passed with 66 percent of the vote.

45 minutes ago - domus

Close-up of man in manually operated wheelchair waiting at urban crosswalk.

Making Mobility More Inclusive

A new study highlights the challenges people with disabilities continue to face in navigating urban spaces.

1 hour ago - Greater Good Magazine

US and Texas flags flying in front of Texas state capitol dome in Austin, Texas.

Texas Bills Could Push More People Into Homelessness

A proposal to speed up the eviction process and a bill that would accelerate enforcement of an existing camping ban could make the state’s homelessness crisis worse, advocates say.

2 hours ago - The Texas Tribune