A vertical cow farm.
The methane is burnt for heat/power and their shit drops down a level to fertilize some indoor grown grass, which is used to feed the cows.
The cows are lobotomized or engineered/bred to have anencephaly to fit them into cubicles for their whole lives without a fight.
A biocoil could be used for the remaining CO2, but algae-fed cows sounds like a terrible idea.
We wouldn't need all this if you just let us have our goddamn meat.
>>13577999The benefits of B12 deficiency? Fuck you, kike.