NAIROBI / RankWire.AI / – According to the United Nations Environment Programme, the global cost of food loss and waste exceeds $1 trillion each year. Every day, households alone discard over one billion meals. The issue gained renewed attention around the International Day of Awareness of Food Loss and Waste on September 29. UNEP emphasizes that reducing food losses can help conserve land, water, and forests while also curbing emissions associated with uneaten food.
This challenge spans entire food supply chains and consumer markets. The Food and Agriculture Organization reports that 13.4% of globally produced food is lost between harvest and retail. Additionally, 19% of available food is wasted by households, food services, and retailers. UNEP’s 2024 Food Waste Index estimates that in 2022, 1.05 billion tonnes of food were wasted at the consumer level, with households responsible for 60% of that total.
Food loss and waste contribute approximately 8% to 10% of worldwide greenhouse gas emissions. Specifically, food waste accounts for up to 14% of global methane emissions. UNEP programme manager Michael Muratha highlights that better handling, storage, transportation, and cold-chain systems are practical measures to reduce losses. He also advocates for redistributing safe surplus food to keep edible items in use.
Strategies to Reduce Waste Throughout the Food Chain
Technology is increasingly being leveraged to quantify waste in commercial kitchens. A UAE initiative involving Hilton, Winnow, UNEP West Asia, and the Ne’ma project monitored breakfast waste across 13 hotels. The programme utilized AI-based tools and plate-waste tracking systems to identify overproduction and unnecessary discards. Winnow’s data indicates a 62% overall decrease in breakfast food waste over four months, focusing on reduction rather than solely post-consumer waste.
The project achieved a 76% decrease in pre-consumer waste and a 55% drop in post-consumer waste. By analyzing the data, teams adjusted food preparation, buffet layouts, portion sizes, and staff procedures. This example underscores how technology can support both waste measurement and operational improvements. UNEP also promotes simpler, low-tech solutions such as community initiatives that reappropriate ingredients often thrown away during meal prep.
Global Goals Set for 2030
At COP30 in Belém, Brazil, in November 2025, UNEP and its partners launched the Food Waste Breakthrough. The initiative aims for a 50% reduction in worldwide food waste by 2030 and seeks to decrease methane emissions related to food waste by up to 7%. The Global Environment Facility contributed $3 million toward this effort during its launch. The event’s location at COP30 corrected earlier references that mistakenly associated the initiative with COP31 in Brazil.
This 2030 target supports Sustainable Development Goal 12.3, which calls for halving per-capita food waste at retail and consumer levels and reducing losses across production and supply chains. As of September 2026, FAO noted that progress toward this goal has been limited in recent years. Current UN data reveal that food losses and waste continue to be substantial, consuming resources and incurring significant economic and environmental costs.