Is pea milk environmentally sustainable compared to other milk alternatives?
Pea milk looks like a low-impact milk. The World Resources Institute reports it produces far fewer emissions than cow's milk and estimates its total water footprint at 86 percent lower. Soy milk is a close second, and almond milk's water use depends on where it is grown. Pea milk is not covered in every study, so treat comparisons as estimates.
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In this article
Is pea milk environmentally sustainable?
According to the World Resources Institute (WRI), pea protein milk has far lower greenhouse gas emissions than cow’s milk, and its total water footprint is estimated to be 86 percent lower. WRI notes that the water figure relies on an external estimate rather than its own data, and that blue water data was not available.
How do the milks compare?
| Milk | Climate and water (WRI summary) |
|---|---|
| Pea | Far lower emissions than cow’s milk; low water; protein comparable to cow’s milk |
| Soy | Close second to pea; low emissions and water use |
| Oat | Lower emissions and water than cow’s milk; low protein |
| Almond | Good for climate; water use about the same as cow’s milk and depends on region |
| Dairy | Highest emissions of those compared; most plant milks use considerably less water |
Our World in Data, using a large meta-analysis, reaches the same broad conclusion: dairy has around three times the greenhouse gas emissions of plant milks and around ten times the land, while there is no clear winner among plant milks on every measure. Its comparison covers soy, oat, almond, rice and coconut, not pea.
What affects the result?
- Where crops grow: almond milk from a water-stressed region may be worse for water than dairy from a wetter region.
- Processing and packaging: the studies compare farm-to-product impacts, and cartons, transport and factory energy matter too.
- Fortification and added sugar: these change the nutrition, not the climate score.
- Data limits: impact numbers come from models and change by study, so no single number is final.
How do you choose?
If you want a lower-impact milk with decent protein, pea and soy are good starting points. For sustainability, buy what you will actually finish, since wasted milk is wasted impact. Environmental data is not shown on food labels.
People also ask
Is pea milk better for the environment than dairy?
WRI says yes: far lower emissions and an estimated 86 percent lower water footprint, though the water number is an estimate.
Which plant milk is the most sustainable?
Our World in Data finds no clear winner on every measure. WRI describes pea milk as the lowest-impact option it looked at, with soy a close second.
Is almond milk bad for the environment?
It has low emissions but high water use, which depends on where almonds are grown.
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