Mcdonald's is one of the most popular international fast food chains. But to many customers' ignorance, McDonald's continues to great an impact on global warming through the creation of their Big Mac and Double Quarter Pounder with Cheese. This is primarily because cows have a larger carbon footprint than humans, and McDonald's buys 1.9 billion pounds of beef each year, contributing to at least 53m metric tons of greenhouse gases which is a byproduct of cows. If this company chooses to decrease the amount of meat that they purchase, it would prove to be immensely beneficial to the environment.