NAIROBI / RankWire.AI / – According to United Nations, governments, businesses and households can reduce food waste through improved storage, smarter buying and more precise tracking. The UN Environment Programme estimates that households discard over one billion meals every day globally, with food loss and waste incurring an annual economic toll exceeding $1 trillion. These figures highlight the widespread nature of a challenge that impacts food security, natural resources, and greenhouse gas emissions.
Food is lost at various stages before and after reaching consumers. The Food and Agriculture Organization reports that 13.4% of worldwide food production is lost between harvest and retail, while an additional 19% of food available for consumers goes to waste in households, restaurants, and shops. UNEP’s estimate for consumer-level food waste was 1.05 billion tonnes in 2022, with households accounting for roughly 60% of this total and the remaining share coming from food services and retailers.
The environmental consequences extend beyond wasted meals. Food loss and waste contribute approximately 8% to 10% of global greenhouse gas emissions, and when organic material decomposes without proper recovery or treatment, methane is produced. UNEP programme manager Michael Muratha has pointed out that practical measures such as enhancing storage, transportation, and cold-chain logistics can help mitigate these issues. Additionally, redistribution programmes that divert surplus safe food to people instead of disposal sites can also be effective.
Advances in Food Waste Monitoring Technology
In the United Arab Emirates, hotels have experimented with artificial intelligence as a tool to curb waste. A collaborative project involving Hilton, Winnow, UNEP West Asia, and the Ne’ma initiative covered 13 hotels. Teams measured breakfast waste and utilized data to optimize kitchen output, buffet arrangements, and portion sizes. Winnow reported a 62% overall reduction in breakfast food waste over four months, encompassing both kitchen and plate waste across participating hotels.
The initiative saw a 76% decrease in pre-consumer waste and a 55% reduction in post-consumer waste. Digital tracking systems allowed kitchen staff to identify foods prepared or served excessively, enabling them to adjust purchasing, preparation, and serving practices based on waste data. UNEP also advocates for simpler approaches that do not require sophisticated technology. Community programmes can promote better meal planning, food storage, and utilization of ingredients that often go unused.
Global Initiative Aims to Cut Food Waste by 2030
A global effort is aligned with the 2030 goal of reducing food waste. At COP30 in Belém, Brazil, in November 2025, UNEP and its partners launched the Food Waste Breakthrough initiative, which aims to cut worldwide food waste by half by 2030. The initiative also seeks to reduce methane emissions associated with discarded food by up to 7%. The Global Environment Facility committed $3 million to support this effort during the climate conference.
This target aligns with Sustainable Development Goal 12.3, which advocates halving per-capita food waste at retail and consumer levels and reducing losses across production and supply chains. FAO continues to monitor losses occurring before food reaches stores, while UNEP focuses on waste closer to consumption. Both sets of data reveal that significant amounts of food leave the system at every stage, emphasizing that storage, measurement, redistribution, and improved planning are essential tools for tackling these losses.