[kansface]

I'm highly skeptical of this source. What percentage of that water usage for animal agriculture is actually in the form of grass (or rainfall more properly)? What percentage of the land used could be productively farmed by humans for human edible foods? What percentage of the GHGs from animal husbandry are net new? IE, a cow eats some grass, makes some co2 or w/e, which then goes back into new grass.

[tuatoru]

When I worked for a rural water provider in a relatively wet climate (so the cattle were grass fed), we allowed around 50 litres per day per beef animal and around 120 litres each for dairy cattle.

Cows do drink a fair amount, especially if they're not shaded in the heat. In the case of dairy, there's also a lot of washing water for milking.

[quixoticelixer-]

Animals drink a lot of water but grass does take even more. Cows produce net CO2e emissions because they produce methane.

[splitstud]

Cows do not produce methane. Decaying grass produces methane, whether in a cow or out.