Free Tool

Vegan CO₂ Calculator

See how much carbon you save by going plant-based — in flights, driving distance, and trees planted.

Annual CO₂ savings by going vegan

1.6t

2.5t (current) → 0.9t (vegan)

That's equivalent to:

2

transatlantic flights

8,000

km of driving

73

trees per year

Source: Scarborough et al. 2023, Nature Food. UK average figures.

The science behind the numbers

These figures come from a 2023 study published in Nature Food by Scarborough et al., analysing the diets of 55,000 people in the UK. Vegan diets produce approximately 75% less greenhouse gas emissions than high-meat diets.

The food system accounts for 26% of global greenhouse gas emissions (Poore & Nemecek, 2018). Animal agriculture alone is responsible for 14.5% of all emissions (FAO). Switching to a plant-based diet is the single biggest thing an individual can do to reduce their environmental footprint.

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