NAIROBI / RankWire.AI / – According to the United Nations Environment Programme, the economic impact of global food loss and waste exceeds $1 trillion every year. Households alone discard over one billion meals daily. The topic gained renewed attention on September 29 during the International Day of Awareness of Food Loss and Waste, with UNEP emphasizing that reducing such losses can help conserve land, water, and forests while also lowering emissions associated with uneaten food.
This problem spans entire food supply chains and consumer markets, with the Food and Agriculture Organization estimating that 13.4% of global food produced is lost after harvest and before it reaches retail. Additionally, 19% of food available to consumers is wasted by households, food services, and retailers. UNEP’s 2024 Food Waste Index revealed that in 2022, 1.05 billion tonnes of food waste originated at the consumer level, with households responsible for 60% of this waste.
Both UNEP and FAO report that food loss and waste contribute approximately 8% to 10% of worldwide greenhouse gas emissions. The waste alone accounts for up to 14% of global methane emissions. UNEP programme manager Michael Muratha has underscored practical measures such as improved handling, storage, transportation, and cold-chain systems to minimize losses. He also highlighted the importance of redistributing safe surplus food as a way to keep edible products in use and reduce waste.
Addressing waste through systemic and technological approaches
Technology is increasingly being employed to quantify waste in commercial kitchens, exemplified by a UAE initiative involving Hilton, Winnow, UNEP West Asia, and the Ne’ma project, which monitored breakfast waste across 13 hotels. This initiative utilized AI tools and plate-waste tracking systems to identify issues like overproduction and food disposal. Data from Winnow’s project indicated a 62% overall decrease in breakfast food waste over four months, though this figure pertains to the reduction in waste at the consumer level rather than post-consumer waste specifically.
During this project, teams were able to achieve a 76% reduction in pre-consumer waste and a 55% decrease in post-consumer waste. They made adjustments to food production processes, buffet layouts, portion sizes, and staff practices based on the insights provided by the tracking systems. These results serve as documented evidence of how technology can facilitate both measuring food waste and implementing operational improvements. UNEP has also supported low-tech strategies such as community programs that repurpose ingredients often discarded during food preparation.
Global commitments aim for progress by 2030
In November 2025, UNEP and its partners launched the Food Waste Breakthrough initiative during COP30 in Belém, Brazil, with the goal of reducing global food waste by half by 2030. The initiative also aims to cut methane emissions related to food waste by up to 7%. At its launch, the Global Environment Facility pledged $3 million to support the project. It is important to note that the event took place at COP30, correcting earlier references that incorrectly placed the initiative at COP31 in Brazil.
This 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 food losses throughout production and supply chains. As of September 2026, FAO reported that recent progress toward this goal has been limited, and current UN data show that food losses and waste remain significant, leading to wasted resources and considerable economic and environmental costs.
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