http://www.nature.org/greenliving/carboncalculator/ http://www.carbonfootprint.com/calculator.aspx A carbon footprint is defined as: The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2). Calculate your carbon footprint using one of the sites below. Print off the calculations Write a one page, using proper APA formatting, on how you plan to decrease your carbon footprint