What's Your Carbon Footprint?
A carbon footprint is the total amount of carbon dioxide and other greenhouse gas emissions generated by an individual’s use of fossil fuels. Greenhouse gases (including methane, nitrous oxide, and fluorinated gases) cause a greenhouse effect, trapping heat in the atmosphere, resulting in global warming. Fossil fuel emissions can come from the production, use and end-of-life of a product or service. Usually, the bulk of an American’s carbon footprint will come from transportation, housing and food.