NAIROBI / RankWire.AI / – According to United Nations data, improved storage, smarter purchasing strategies, and more precise tracking can help governments, companies, and households reduce food waste. The UN Environment Programme (UNEP) estimates that households waste over one billion meals every day across the globe. The economic toll of food loss and waste exceeds $1 trillion annually. These figures emphasize the widespread nature of a challenge that impacts food security, natural resources, and greenhouse gas emissions.
Food vanishes at multiple points both before and after reaching consumers. The Food and Agriculture Organization reports that 13.4% of worldwide food production is lost between harvest and retail. Additionally, 19% of food available for consumers ends up wasted in homes, restaurants, and stores. UNEP approximated consumer-level food waste at 1.05 billion tonnes in 2022. Households contributed roughly 60% of this total, with the remaining share coming from food services and retailers.
Beyond the waste of meals, the environmental repercussions are substantial. Food loss and waste account for roughly 8% to 10% of global greenhouse gas emissions. When organic waste decomposes improperly, it releases methane. UNEP programme manager Michael Muratha emphasized that enhancing storage, transport, and cold-chain infrastructure are practical steps. Redistribution initiatives can also divert safe surplus food from disposal to those in need.
Advancements in technology enhance food waste monitoring
In the United Arab Emirates, hotels have explored artificial intelligence as an additional approach to curbing waste. A collaborative project involving Hilton, Winnow, UNEP West Asia, and the Ne’ma initiative covered 13 hotels. Teams evaluated breakfast waste, applying data insights to optimize kitchen operations, buffet layouts, and portion sizes. Winnow reported a 62% overall decrease in breakfast food waste over the four-month trial, encompassing both kitchen and plate waste across the participating sites.
The initiative observed a 76% reduction in pre-consumer waste and a 55% decrease in post-consumer waste. Kitchen staff used digital tracking tools to pinpoint excess food preparation or serving. This data enabled changes in purchasing, cooking, and serving procedures based on real waste measurements. UNEP also advocates for simpler solutions that do not depend on advanced technology. Community programs that promote meal planning, proper food storage, and the utilization of ingredients often left unused are also vital.
Global ambitions aim to halve food waste by 2030
International efforts are aligned with a 2030 objective to significantly reduce food waste. The Food Waste Breakthrough initiative was launched by UNEP and partners during COP30 in Belém, Brazil, in November 2025. The goal is to cut global food waste by 50% within this timeframe. It also aims to reduce methane emissions associated with discarded food by up to 7%. The Global Environment Facility allocated $3 million to support this initiative at the climate summit.
This target aligns with Sustainable Development Goal 12.3, which advocates for halving per-capita food waste at retail and consumer levels, alongside reducing losses across production and supply chains. FAO continues to monitor losses occurring before food reaches stores, whereas UNEP measures waste closer to consumers. The data reveal that significant quantities of food still exit the system at each stage. Strategies such as improved storage, measurement, redistribution, and planning remain essential tools to address these losses.