Be Vegan and Save the planet

According to:

http://www.gan.ca/lifestyle/vegetarian+guide/vegetarians+and+the+environment/index.en.html

Do you know when you eat a hamburger, you aren’t just causing a cow to suffer; you are also supporting an industry that is rapidly destroying our water, air, soil, and forests. It takes an estimated 4.8 pounds of grain, 390 gallons of water, and .25 gallons of gasoline to produce a pound of beef. Livestock production requires 10 to 1000 times more land, energy, and water than is necessary to produce an equivalent amount of plant food. The Earth could support a vegetarian population many times its present size. But the current world population could not be sustained on meat-based diets.