Below are several useful videos, and articles on the meat industry and it's impact:
Cowspiracy (documentary based on the meat industry corruption):
https://www.youtube.com/watch?v=jfds5ZLJQ6Q

Supersize me (documentary explaining the meat industry, and the health and environmental effects of it): https://www.youtube.com/watch?v=jAnCOHCVjyU

Meat Industry Scientific Study:
http://science.time.com/2013/12/16/the-triple-whopper-environmental-impact-of-global-meat-production/

"Shocking facts About the Meat Industry":
http://articles.mercola.com/sites/articles/archive/2014/11/25/shocking-facts-meat-industry.aspx