NAIROBI / RankWire.AI / – According to United Nations, improvements in storage, smarter purchasing practices, and enhanced tracking can help reduce food waste across all levels of society. The UN Environment Programme (UNEP) reports that households discard more than one billion meals each day worldwide. The economic toll of food loss and waste surpasses $1 trillion annually. These figures highlight a pressing issue impacting food security, natural resources, and greenhouse gas emissions.
Food is lost at multiple points before and after reaching consumers. The Food and Agriculture Organization states that 13.4% of global food production is wasted between harvest and retail. An additional 19% of food accessible to consumers is discarded in homes, restaurants, and retail outlets. UNEP’s estimates for consumer-level food waste reached 1.05 billion tonnes in 2022, with households responsible for approximately 60% of that total, while food services and retailers account for the remaining share.
Beyond its environmental consequences, food waste contributes significantly to greenhouse gas emissions, accounting for around 8% to 10% globally. Organic waste decomposes and produces methane if not properly recovered or managed. UNEP programme manager Michael Muratha emphasizes the importance of storage, transportation, and cold-chain improvements as practical solutions. Additionally, redistribution efforts can divert surplus but safe food from disposal sites to those in need.
Advances in Technology Enhance Food Waste Monitoring
Artificial intelligence has been trialed in the United Arab Emirates by hotels aiming to reduce waste. A collaborative project involving Hilton, Winnow, UNEP West Asia, and the Ne’ma initiative included 13 hotels. These teams tracked breakfast waste and used the resulting data to optimize kitchen production, buffet arrangements, and portion sizes. Winnow’s reports indicate a 62% overall decrease in breakfast food waste over four months, encompassing both kitchen and plate waste across the participating locations.
Specifically, pre-consumer waste was reduced by 76%, while post-consumer waste decreased by 55%. Digital tracking systems enabled kitchen teams to identify foods prepared or served excessively. This data guided staff in adjusting purchasing, preparation, and serving practices accordingly. UNEP also advocates for simpler solutions that do not depend on advanced technology. Community programs can foster better meal planning, improved food storage, and the use of ingredients that often go unused.
Global Strategies Aim to Halve Food Waste by 2030
Efforts on an international scale are linked to a 2030 goal of reducing food waste significantly. UNEP and partners introduced the Food Waste Breakthrough during COP30 in Belém, Brazil, in November 2025. This initiative aims to cut global food waste by 50% by 2030 and also seeks to decrease methane emissions related to discarded food by up to 7%. The Global Environment Facility pledged $3 million to support this effort at the climate conference.
The 2030 goal aligns with Sustainable Development Goal 12.3, which calls for halving per-capita food waste at retail and consumer levels, along with reducing food losses throughout production and supply chains. While FAO continues to monitor losses before food reaches retail outlets, UNEP measures waste closer to the point of consumption. The combined data reveal that large quantities of food still exit the system at every stage, emphasizing the importance of storage, measurement, redistribution, and improved planning as vital strategies to minimize these losses.