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Archive:000/Limits to sustainable animal consumption: Difference between revisions
Archive:000/Limits to sustainable animal consumption (view source)
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Tl;dr: The limit is about '''17 g protein/day''' per person - in total, from all grass-fed ruminants (cows, mostly) and wild-caught fish. | |||
==Farming== | ==Farming== | ||
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This raises a more important question: | This raises a more important question: | ||
:'''If farm animals only ever ate...''' | |||
:If farm animals only ever ate... | :* grasses and other plants from pasture & range{{x|especially from biodiverse natural lands that keep a lot of carbon stored in the roots of plants}}, and | ||
:* grasses and other plants from pasture & range {{x|especially from biodiverse natural lands that keep a lot of carbon stored in the roots of plants}}, and | :* the parts of food crops that humans ''can't'' eat{{x|for example corn cobs after the kernels have been removed (ruminants can digest certain kinds of fibrous matter that other species can't)}}, | ||
:* the parts of food crops that humans ''can't'' eat {{x|for example corn cobs after the kernels have been removed (ruminants can digest certain kinds of fibrous matter that other species can't)}}, | :'''and never...''' | ||
:and never... | :* human-edible food crops{{x|including corn and soy as those could be made into flour}} {{x|''Grey area'': Perhaps also include "spent grains" and "fryer waste oil" here, because the original materials ''were'' human-edible, and the downgrading was a choice.}}, nor | ||
:* human-edible food crops {{x|including corn and soy as those could be made into flour}} {{x|''Grey area'': Perhaps also include "spent grains" and "fryer waste oil" because the original materials were human-edible, and the downgrading was a choice}}, nor | :* crops grown specifically for animal feed{{x|''Grey area'': Perhaps also include the more superficial types of "pasture" that are monoculture-like and don't keep a lot of permanent roots. The exact definition can be specified in the answer to the question.}}, | ||
:* crops grown specifically for animal feed {{x|''Grey area'': Perhaps also include the more superficial types of "pasture" that are monoculture-like and don't keep a lot of permanent roots. The exact definition can be specified in the answer to the question.}}, | :'''how much animal protein{{x|from meat, milk and/or eggs etc}} could be produced?''' | ||
:how much animal protein {{x|from meat, milk and/or eggs etc}} could be produced? | |||
Clearly it's less than the ''status quo'', as there are fewer sources of feed. But ''how much'' less? | Clearly it's less than the ''status quo'', as there are fewer sources of feed. But ''how much'' less? | ||