Anonymous: "Not if more virgin forests had to be cut down to grow more crops to make up for the dense calories that meat provides. BTW, factory farming of animals is a Western phenomenon that is not practiced by most of the world."

Worldwatch Institute says: 74 percent of the world's poultry, 43 percent of  the world's beef, and 68 percent of the world's eggs are produced in factory farms. In the U.S., four companies produce 81 percent of cows, 73 percent of sheep, 60 percent of pigs, and 50 percent of chickens; according to its National Pork Producers Council, 80 million of its 95 million pigs slaughtered each year are reared in factory farms

And didn't you read what Einstein said in "Kill the Cow Save the Tree"? 10 calories of grain to produce 1 calorie meat. Caloricly dense indeed! Selfish, selfish meat...