The US beef industry is a major contributor of greenhouse gases and is commonly regarded as unsustainable at current levels. A new study models a system in which sustainability could be increased by subsistence on grass and agricultural by-products, prompting the question, ‘what are the limits of sustainable livestock production in the US’?
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Firbank, L.G. The beef with sustainability. Nat Ecol Evol 2, 5–6 (2018). https://doi.org/10.1038/s41559-017-0422-1
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DOI: https://doi.org/10.1038/s41559-017-0422-1