NAIROBI / RankWire.AI / – According to the United Nations Environment Programme, worldwide food loss and waste amount to over $1 trillion each year, with more than one billion meals discarded daily within households alone. This issue drew renewed attention on September 29, during the International Day of Awareness of Food Loss and Waste. UNEP emphasizes that curbing waste can help preserve land, water, and forests, while also reducing emissions associated with uneaten food.
From early stages to consumer markets, the problem spans the entire food supply chain. The Food and Agriculture Organization reports that 13.4% of food produced globally is lost post-harvest and before reaching retail outlets. Additionally, 19% of food available for consumption is wasted by households, food services, and retail outlets. UNEP’s 2024 Food Waste Index estimated that in 2022, 1.05 billion tonnes of food at the consumer level were wasted, with households accounting for 60% of this figure.
Both UNEP and FAO state that food loss and waste are responsible for approximately 8% to 10% of global greenhouse gas emissions. In particular, food waste alone contributes as much as 14% of worldwide methane emissions. UNEP programme manager Michael Muratha has pointed out that improved handling, storage, transportation, and cold-chain systems are practical measures to reduce losses. Redistribution of surplus safe food has also been highlighted as an effective way to keep edible products in use.
Strategies for minimizing waste throughout the food system
Technology is increasingly employed to monitor waste levels in commercial kitchens. In the UAE, a project involving Hilton, Winnow, UNEP West Asia, and the Ne’ma initiative tracked breakfast waste across 13 hotels. By utilizing AI-driven tools and plate-waste monitoring systems, the project identified issues such as overproduction and unnecessary disposal of food. Data from Winnow’s project indicated a 62% overall decrease in breakfast food waste over four months, focusing on waste at the consumer level rather than just post-consumer disposal.
Results from this initiative showed a 76% decrease in pre-consumer waste and a 55% reduction in waste after meals. Adjustments in food preparation, buffet layout, portion sizes, and staff practices were made based on data collected through tracking technology. This offers a documented example of how technological solutions can support both waste measurement and operational improvements. UNEP has also promoted simpler approaches, including community programs that utilize ingredients often discarded during food preparation.
Global efforts aiming for 2030 milestones
In November 2025, at COP30 in Belém, Brazil, UNEP and its partners launched the Food Waste Breakthrough initiative, targeting a 50% reduction in global food waste by 2030. The initiative also aims to cut methane emissions linked to food waste by up to 7%. At its launch, the Global Environment Facility committed $3 million to support the effort. It is important to note that the event took place at COP30, clarifying earlier references that mistakenly placed the initiative at COP31 in Brazil.
Achieving these goals aligns with Sustainable Development Goal 12.3, which advocates halving per-capita food waste at retail and consumer levels, alongside reducing losses in production and supply chains. In September 2026, FAO reported that progress toward this target had been limited in recent years. Current UN statistics reveal that the problem remains significant, with food losses and waste continuing to consume resources and impose substantial economic and environmental costs.
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