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> I would think all that pastureland would be pretty good at sucking up carbon and storing it in soil, but I don't know.

I'm unsure, but my understanding is that carbon sequestration of the old-growth "permaculture" of the prairies and other grasslands comes from their extremely deep roots. [1]

I'm not sure what the pastures of a typical large cattle farm look like, and whether their roots travel anywhere near as deep. However, as we're already establishing, I'm not an expert.

1. https://www.fws.gov/news/blog/index.cfm/2011/6/27/iowa-the-p...



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