First things, first: your carbon footprint is the calculation of the amount of greenhouse gases released as a result of your day-to-day activity—anything from driving your car to the hamburgers you serve for dinner. And it doesn't just include your actions, but the all the actions up to yours. So the hamburger includes the emissions generated by raising the cow, transporting the meat, and so on.
To find out what your carbon footprint is, visit the Environmental Protection Agency's Emissions Calculator. The short survey will also give you steps to take (like adjusting your thermostat or buying energy star appliances) that can help reduce your carbon footprint.
Did you take the quiz? What is your carbon footprint? What steps are you going to take to lower it?