NAIROBI / RankWire.AI / – On September 29, the International Day of Awareness of Food Loss and Waste, the United Nations Environment Programme emphasized that worldwide food loss and waste amount to over $1 trillion each year. An estimated one billion meals are discarded daily in households alone. The focus on this issue was renewed during the observance day, with UNEP underscoring that reducing food losses can help conserve land, water, and forests while lowering emissions associated with uneaten food.
This challenge spans the entire food supply chain and consumer markets. According to the Food and Agriculture Organization, 13.4% of global food production is lost after harvest and before reaching retail outlets. An additional 19% of food available to consumers is wasted by households, food services, and retailers. UNEP’s 2024 Food Waste Index estimates that in 2022, 1.05 billion tonnes of food at the consumer level were wasted, with households accounting for 60% of this figure.
The combined impact of food loss and waste contributes approximately 8% to 10% of worldwide greenhouse gas emissions. Specifically, UNEP and FAO report that food waste alone is responsible for up to 14% of global methane emissions. UNEP programme manager Michael Muratha has pointed to practical solutions such as improved handling, storage, transport, and cold-chain logistics as effective ways to cut losses. He also advocates for redistributing surplus safe food to prevent edible products from going to waste.
Strategies to Minimize Waste Throughout the Food Chain
Technology is increasingly being employed to quantify waste in commercial kitchens. A project in the UAE, involving Hilton, Winnow, UNEP West Asia, and the Ne’ma initiative, monitored breakfast waste across 13 hotels. The initiative used AI tools and plate-waste systems to identify instances of overproduction and discarded food. According to Winnow’s data, there was a 62% overall decrease in breakfast food waste over four months, primarily due to a decline in post-consumer waste.
Results showed a 76% reduction in pre-consumer waste and a 55% decrease in waste after meals. By analyzing data from the tracking systems, staff adjusted food preparation, buffet layouts, portion sizes, and operational practices. These findings serve as documented evidence that technology can aid in both measuring food waste and implementing procedural changes. UNEP also supports low-tech initiatives, including community programs that repurpose ingredients often discarded during food preparation.
Global Targets Set for 2030
The United Nations Environment Programme and its partners launched the Food Waste Breakthrough at COP30 in Belém, Brazil, in November 2025, aiming for a 50% reduction in global food waste by 2030. The initiative also aims to cut methane emissions related to food waste by up to 7%. During its launch, the Global Environment Facility committed $3 million to support the effort. It’s important to note that the event took place at COP30, correcting earlier references that mistakenly linked the initiative to COP31 in Brazil.
The 2030 target aligns with Sustainable Development Goal 12.3, which calls for halving per-capita food waste at retail and consumer levels, while also reducing losses along production and supply chains. As of September 2026, FAO reported that progress toward this goal has been limited. Current UN statistics indicate that food losses and waste remain significant, consuming valuable resources and resulting in substantial economic and environmental impacts.