Asked by: Libby Chapman, Nottingham

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All of the non-dairy milks are much better for the environment than cow’s milk. They use less land, less water and generate lower amounts of greenhouse gases. The milk with the lowest greenhouse gas emissions is almond milk, because the trees lock up a lot of CO₂ as they grow. However, it does require the most water to produce of the vegan milks. Soy milk uses the least water with only slightly higher emissions.

Environmental impact of one glass (200ml) of different milks:

1

Dairy

Emissions (kg) = 0.63

Land use (square metre) = 1.79

Water (litre) = 125.6

2

Rice

Emissions (kg) = 0.24

Land use (square metre) = 0.07

Water (litre) = 54

3

Soy

Emissions (kg) = 0.2

Land use (square metre) = 0.13

Water (litre) = 5.6

4

Oat

Emissions (kg) = 0.18

Land use (square metre) =0.15

Water (litre) = 9.6

5

Almond

Emissions (kg) = 0.14

Land use (square metre) = 0.1

Water (litre) = 74.3

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luis villazon
Luis VillazonQ&A expert

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.

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