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I'm going to throw an answer out here, but surely there people with more knowledge out there. Please contribute as you can, and suggest corrections to any errors I make here. I have tried to detail my reasoning, but this answer is more hand-waving. For example, I can find no reliable sources to evaluate different types of pollution. I am going to assume ...


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Our World in Data recently put together an interesting chart on this topic. From the article "You want to reduce the carbon footprint of your food? Focus on what you eat, not whether your food is local": The article provides a specific (extreme) example for someone in the UK getting beef from their neighbor, vs a ranch in Central America: ...


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For cheese, begin with milk. And the largest dairy farms are going to have the economy-of-scale to make methane-capture both possible and profitable. Methane can be captured at indoor milking stations. And cow manure in the fields can be put into digester tanks that have inflatable rubber bladders on top and capture methane. Of course there is no 100% ...


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There is an extensive study by the UN Food and Agriculture Organization: Tackling climate change through livestock. Their key facts and findings summary has a comparison between cow and small ruminant (i.e. sheep and goats) milk. The comparison is done in terms of kg of CO2 equivalent emissions per kg of milk protein produced. The conversion from milk to ...


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