• cygnus
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          4 months ago

          In a previous article I looked at where greenhouse gas (GHG) emissions in the food system came from – ranging from deforestation and land use, through to transport and packaging. The study my article was based on was published by Joseph Poore and Thomas Nemecek, estimated that the food system was responsible for one-quarter (26%) of global emissions.1 A new study, published by Monica Crippa and colleagues in Nature Food estimates a higher share: one-third (34%) of emissions.

          Edit: and another source, since that quote is about food writ large:

          Given that the climate impact of plant-based foods is typically 10 to 50 times smaller than that of animal products, it follows that switching from a largely meat-based diet to a vegetarian or vegan diet could help to reduce emissions.

          https://interactive.carbonbrief.org/what-is-the-climate-impact-of-eating-meat-and-dairy/

          So assuming the low 10% figure we can remove 3.4% from the previous number, giving 30.6%

          • commie@lemmy.dbzer0.com
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            4 months ago

            first, I wouldn’t trust poore/nemecek 2018 to tell me how much a cc of water weighs. but even if we take your quote as gospel,.there is no reason to believe that lab grown meat would eliminate all GHG emissions.

            • cygnus
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              4 months ago

              there is no reason to believe that lab grown meat would eliminate all GHG emissions.

              Sure is a good thing I never said that, then, because that would indeed be a ridiculous claim.

              • commie@lemmy.dbzer0.com
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                4 months ago

                you said lab grown meat would reduce our ghg emissions by 30% then quoted a pair of studies, one of which is dubious imho, that placed the entire ghg emissions of all of agriculture around 30%.

    • anon6789@lemmy.world
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      4 months ago

      I came here for this one.

      I don’t follow news on alt-meat super closely, but I thought the scalability thing was not much of a concern, and I thought we were mainly at the steps of raising demand and meating or beating price parity with the real thing.

      Something like an alt-meat only fast food spot or something trendy that can only be done with lab created protein could be all it takes to cement its place in society, so I feel we’re just waiting for that tipping point due to product that mainly already exists.