1 pound of beef requires:
- 1,799 (6,810 liters) gallons of water
- 6.6 pounds of grain for feed plus irrigation water
- 36.2 pounds of grass or roughage to eat plus irrigation water
- 18.6 gallons of additional water for drinking and processing
*taken from National Geographic
It’s simply not efficient. On top of that overgrazing of cattle destroys the environment and causes erosion. And add to that the methane gas that they create which is apparently more powerful than carbon dioxide emissions.