One factory farm creates more pollution than the city of Houston, Texas.

A US General Accounting Office report found that a single factory farm produces 1.6 million tons of manure each year, which in turn contaminates local water resources through runoff into streams, rivers and lakes. Often these water bodies are no longer safe for swimming, drinking or as wildlife habitat due to bacteria and excessive chemicals. A recent report by the Pew Commission concluded that measures to curtail factory farming are necessary to prevent further damage to water supplies and the environment, along with accelerated global warming.
US General Accounting Office and Pew Commission, we are grateful for these informative studies that help us understand the urgency of our situation. May we all join together to revive our beautiful Earth’s sustainability through such quickly effective practices as the ecologically sound plant-based diet. 
http://www.thedailygreen.com/healthy-eating/eat-safe/factory-farms-47092401?src=syn&dom=yah_buzz&mag=tdg&ha=1&kw=ist