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Comment by robin_reala | Hacker News Reader

It’s also worth pointing out that even if you don’t want to reduce the amount of meat you eat, changing the type of meat can have big effects. For example (and ignoring transport to the consumer), lamb produces about 35 kg CO₂ per kg of meat, beef 25kg CO₂ / kg, pork and farmed salmon 8kg CO₂ / kg and chicken 4kg CO₂ / kg.

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If you really want to have an impact while still eating meat, just stop eating beef/lamb altogether

The amount of food and water needed to produce 1kg of beef meat is just insane

Eat poultry or fish instead

https://en.wikipedia.org/wiki/Feed_conversion_ratio

>Cattle is the worst at something like 15:1. Aquaculture, specifically tilapia and catfish, is good at under 2:1

As already mentioned in another discussion, the ratio they use for farmed fish is "where the first number is the mass of harvested fish used to feed farmed fish, and the second number is the mass of the resulting farmed fish".

Which makes it much less positive than it first appears.

> makes it much less positive than it first appears.

Take in mind that fish food for aquaculture has a small percentage of plant proteins and oils also. Is unclear if this was included or not in the claimed FIFO ratio, so some of this fish could be really soy (or maybe not). Reality is always more complex than a single numerical value.

Yeah chicken is the best farmed animal on CO₂. They burn less themselves because they can cuddle and have it warm. And don’t need to run around. ... in their small cages

not fish. Commercial fishing is killing the oceans (and something like 80% of the plastic in the ocean is fishing industry waste).

this suggests taxing meat as a function of CO2 production, as opposed to price taxation. This would automatically reward local production (the same additional tax for an imported cheaper meat as for a local but more expensive meat, hits the cheaper one harder)

Thank you. Is there a reliable place I can find this information? I have anecdotally been much healthier after incorporating more protein, particularly whole meat (rather than isolated protein) into my diet - fewer illnesses, faster recovery time, better gut health, etc.

You can access health and CO₂ informations on almost all foods here: https://app.eaternity.ch/login

And meat from wild invasive species is even lower.

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