We eat about 40 million cows and 125 million pigs every year, and more than 8 Billion chicken. These are just the ones that are killed each year, the actual liv

We eat about 40 million cows and 125 million pigs every year, and more than 8 Billion chicken. These are just the ones that are killed each year, the actual livestock inventory is much higher for cows, around 90 million cows. We absolutely will have to cut back production if we want to "sustainably" farm cattle.