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Less meat is nearly always better than sustainable meat, to reduce your carbon footprint
(ourworldindata.org)
Everything related to cooking, nutrition and food preservation
I would say that a landscape of nut trees with some cattle (or wild animals) under it would be the ideal. Where does the 'regardless how they are produced' come from, any source for that? Has anyone measured how a multi-species agroforest would compare to other approaches with and without animal input?