LiveScience: Beef production takes a big toll on the environment, according to one of the most comprehensive studies to date on livestock management in the United States.
To make one steak, 28 times more land, 11 times more irrigation water, five times more greenhouse-gas emissions and six times more fertilizer is needed compared to what's required for other sources of commonly eaten protein, like pork and poultry, the researchers found.
"We were trying to see how many resources we take from planet Earth...