Beef is by far the most environmentally costly food most people can put on their plate, which is why choosing it over alternatives is such a telling signal. Per gram of protein, beef produces many times the greenhouse gas emissions of chicken, eggs, or legumes, mostly from cattle methane and from the forest cleared for pasture and feed. It also demands far more land and water than almost any other common food. These facts are widely published and easy to find, and cheaper, lower-impact options are available in nearly every grocery store. So when someone keeps choosing beef anyway, they are showing that the environmental cost isn’t a factor in their decision. Nobody has to be perfect, but picking the highest-impact option when better ones are easy to reach is a pretty clear statement of priorities.

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[–] 1 point 1 day ago* (1 child)

Like many papers studying this, the authors cite Poore-Nemecek 2018, a flawed study.

One of its biggest flaws is that it calculates using an outdated "global average" which isn't applicable at feedlot level, and especially not to different regional farming methods. The authors use GWP-100, which overstates the effect of CH4, since methane is short lived. They underestimate the carbon benefits of avoiding land use changes by more than 10x (corrected in 2019), and also assume an instantaneous switch to a completely plant based diet, a completely unrealistic assumption. I could go on, but you get the idea.

I encourage you to continue reading the literature, especially the sources that they cite. You will find that many papers cite Poore Nemecek.

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  • Well i dont know if you tell the truth, but obviously you know more of this than me. I will still not eat beef or cut a lot the consumption because it is the environmetalist consensus. Maybe you tell the truth and in 10 years they say eating beef is not that bad for what you say, but to be save i will not eat it and i will be happy if someone reduce their beef intake

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