One of the easiest ways to reduce your carbon footprint is to change your diet. One of the best diets would be non-meat eating diets such as pescetarian, vegeterian or vegan. Another way to change your diet in a way that would affect climate change in a positive matter is to eat less, perhaps by a fasting diet. In one of these fasting diets you would eat in a certain period of time, let's say 8 hours, and then not ingest a single thing for 16 hours, and then repeat the process every day.

I agree that changing your diet is a great way to reduce your carbon footprint but, I don't think it's the easiest way. It is hard for some people to completely cut certain things out of their diet like meat and sugar. I also think it would be hard to get everyone or most people to fast and even become a vegetarian or pescetarian.

if you're a vegetarian then you are not cool vegans

I totally agree. One of the best ways to reduce your carbon footprint is going vegetarian.Its filled with plenty of nutrients and protein compared to the meat products provided.The food that is grown in the world isn't being eaten by humans. In fact, 70% of the grain grown in the US feeds livestock,and, globally,83% of farmland is set aside to raise animals.Things like deforestation,overfishing and pollution caused by meat and fish industries limits the overall capacity of the Earth to produce food. This is telling us how much of our products are prevented from being grown.