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Carbon footprint of milk
Milk has a footprint of about 3.0 kg CO2e per kilogram (300 g per 100 g). See how it compares and a lower-impact swap.
How milk compares
At about 3.0 kg of CO2-equivalent per kilogram, milk ranks 11 of 24 foods on this list, where number one is the highest-impact. That is roughly 7.5 times the footprint of the lowest-impact foods here, such as apples, citrus and root vegetables. It is lower than chicken (about 6 kg/kg).
A lower-impact swap
Soy and oat drinks are roughly a third of the footprint.
Where it sits on the scale
| Food | Group | ≈ kg CO2e / kg |
|---|---|---|
| Eggs | Protein | 4.5 |
| Rice | Staple | 4.0 |
| ➤ Milk | Dairy | 3.0 |
| Tofu | Protein | 3.0 |
| Cane sugar | Other | 3.0 |
A median estimate that varies widely by farm and method — a guide, not a precise figure for a particular product.
Source: Poore, J. & Nemecek, T. (2018), Science 360, 987–992. · checked 2026-09-04
Frequently asked questions
What is the carbon footprint of milk?
About 3.0 kg of CO2-equivalent per kilogram, or roughly 300 g per 100 g — a median estimate across the whole supply chain.
What is a lower-impact alternative to milk?
Soy and oat drinks are roughly a third of the footprint.
Track the food, mind the footprint
TempoLife logs what you eat and its nutrition — an easy place to try lower-impact swaps.