A Carbon Footprint is a measure of the total amount of carbon dioxide emitted by a human activity. Your Carbon Footprint is based off of how much C02 you produce when you burn fossil fuels (when traveling or heating your house), use electricity in your home, breath and the amount of carbon dioxide used when processing the food that you eat. Your Carbon Footprint is even effected by the amount of C02 you produce when you dont recycle. Your Carbon Footprint is basically the total amount of C02 you produce during your daily activities and is effected by all most everything that you do, from going to the store to turning on a light in your bathroom.