Carbon Footprint
If you would like to calculate your carbon footprint (i.e. amount of CO2 that you produce during one year), just visit the following website and an online 'carbon footprint calculator' will do the job for you.
www.carbonfootprint.com/calculator.html
However, if you would really like to understand where all these numbers come from, check the following document.
CO2_conversion_factors_of energy_and_fuels.pdf
