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Beef produces 85 kg CO2e per kg of food. Tofu produces 2.9 kg CO2e per kg of food.
(ourworldindata.org)
So avoid beef, lamb, and mutton, got it.
this post was submitted on 16 Apr 2024
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Beef and tofu and not nutritionally equivalent.
In this paper, we show that plant-based replacements for each of the major animal categories in the United States (beef, pork, dairy, poultry, and eggs) can produce twofold to 20-fold more nutritionally similar food per unit cropland. Replacing all animal-based items with plant-based replacement diets can add enough food to feed 350 million additional people, more than the expected benefits of eliminating all supply chain food loss.
https://www.pnas.org/doi/10.1073/pnas.1713820115#ref-2
This one isn’t exactly about GHGs but I is crazy to think that we could feed a whole other US population by changing what we eat.
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