The hidden cost of hamburgers

Americans eat on an average 3 hamburgers a week. Now this may appear to be nothing big and serious, but the damage it does to environment is something that has rarely been understood. Cows on the other hand release more greenhouse gases than the 22 million cars in the United States. Now, you will ask me as what is the relation between eating a hamburger and the greenhouse gas emissions by cows. 

Well, that is why I thought of uploading this excellent video: The hidden cost of hamburgers.