2. Carbon Tire Tracks
Carbon Tire Tracks These days, many individuals are trying to come up with ways to reduce their “carbon footprint.” How much does your car matter to your “carbon footprint?” Maybe we should be asking, “What is your car’s “carbon tire track?” About 29% of the 6 billion tons of carbon dioxide Americans send into the atmosphere every year come from transportation. About two thirds of U.S. transportation emissions are by passenger vehicles, if you include light and medium-duty trucks (EPA.gov). So yes, transportation is an important part of the problem. To assess the carbon output of your car, all you need is a few numbers. How many miles to the gallon do you get? How many miles do you drive per year? Say you get 20 miles per gallon and you drive 15,000 m...