Because, if we stopped feeding grain to industrial livestock, and started feeding it to human beings instead, this would NOT be a problem

http://www.nytimes.com/2010/09/15/world/15food.html?_r=2&scp=1&sq=world%20food&st=cse

http://news.bbc.co.uk/2/hi/health/7301188.stm

http://www.vegfamily.com/articles/recession-proof-your-diet.htm

http://www.happyhuman.org/informed-by-science/2008/8/30/vegan-diet-are-you-talkin-to-me.html

"I don't understand why asking people to eat a well-balanced vegetarian diet is considered drastic, while it is medically conservative to cut people open and put them on cholesterol-lowering drugs for the rest of their lives."
-Dean Ornish, MD

http://www.nursingdegree.net/blog/19/57-health-benefits-of-going-vegan/

http://www.bryannasveganfeast.citymax.com/page/page/657466.htm

http://www.ejnet.org/bgh/nogood.html

http://www.alternet.org/environment/94052/eating_meat_is_worse_than_driving_a_truck_..._for_the_climate/

http://advocacy.britannica.com/blog/advocacy/2007/05/the-difficult-lives-and-deaths-of-factory-farmed-chickens/