this post was submitted on 24 Aug 2023
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Why is the eutrophication so high for dairy? I’d think pesticide use would drive up the value on plant-based products. Cows don’t need fertilized grass/hay. Is it from the cow excrement? Wouldn’t excrement be too valuable as a fertilizer and for producing methane power to just let it all run off into streams etc.?
A few things to consider. A minority of cows are free range grass fed, a very small minority are 100% grass fed and free range to an extent that matters, even in the case of 100% grass fed there might be fertilizers used. And make no mistake, cows on open pastures are not a good way to feed the human population from an environmental stand point, probably worse than factory farms honestly. Fields are terrible at sequestering carbon and lack a lot of the biodiversity of the forests most of them historically replaced.