Your Personal Carbon Footprint Your carbon footprint is an estimate of how much carbon dioxide you as an individual, based on your personal activities, put into the atmosphere. In your reflection paper for Module 4 you must use at least three internet sites that assist you in calculating your carbon footprint. After performing these three personal carbon footprint calculations, you should reflect on the similarities and differences in the three estimations. Your reflection paper should highlight the reasons these variations occurred. More importantly, it should give you a chance to reflect on whether your carbon footprint is acceptable, and if not, how you might change it.