Being on a carbon budget is sort of like being on a diet. You have to count pounds of carbon just like you count calories on a diet. The big ticket carbon items in my life are the gasoline I burn when I get in a car or on a bus, and the natural gas I burn for cooking and heating in my house. I count my electricity as carbon free, since I have a 100% renewable energy contract with my utility. I put together a spreadsheet to keep track of my carbon emitting activities — I even included a line for eating beef. A pound of beef is 28 pounds of CO2 — more than a gallon of gasoline!
Live! Sustainably! Now! 