The food waste tile applies an annual estimate of 1.3 billion metric tons of food lost or wasted worldwide, spread evenly across the year. It does not track individual bins or supply-chain spoilage in real time.
How the counter works
- Start with 1,300,000,000 metric tons per year.
- Measure how much of the current calendar year has elapsed.
- Display that fraction of the annual total, updating continuously.
The counter climbs from zero on 1 January because the model assumes waste is distributed evenly through the year — not because we know exactly how much was thrown out each hour.
Where 1.3 billion tons comes from
The anchor source is the UNEP Food Waste Index Report 2021. UNEP and partner researchers measured food waste at household, food service, and retail level across dozens of countries, then scaled up to a global picture.
Their central estimate for food wasted at consumption stages is on the order of 930 million tonnes per year, with additional waste upstream in supply chains. Combined with production-side losses, global food loss and waste reaches roughly 1.3 billion tonnes annually — about one third of all food produced for human consumption.
Definitions matter: “food waste” here means food that was edible or intended for human consumption but was discarded or spoiled. It excludes inedible parts like bones and peels where those are not typically eaten.
What this number does not capture
- Exact timing — harvest seasons, holiday surpluses, and retail promotions create spikes our smooth counter cannot show.
- Uniform global reporting — data quality varies; high-income countries measure waste more precisely than many low-income ones.
- Water, land, and emissions embedded in that food — the counter shows mass wasted, not the full environmental footprint of producing food that nobody eats.
Why we show it anyway
Food waste is one of the largest solvable contributors to climate change, water stress, and land use — yet it happens largely out of sight. The counter makes continuous loss visible. Treat it as a published global estimate, not a live inventory of every discarded meal.