Simply put, turn up your thermostat a couple of degrees, that is, turn down the cold. At least when you are setting air conditioning, turning up the thermostat by a couple of degrees. If that’s comfortable, try turning it up a couple of degrees more. The annual savings of carbon could be a half ton or more.
Try wearing lighter clothing too! If you’re using air conditioning but are wearing a flannel shirt, well something doesn’t quite add up.
And how often have you been in a public space, or at work, and thought the place was much too cold? Ask for the management or other authority in that place and suggest that they turn up the thermostat (turn down the cold). Don’t take excuses, or at least pursure the excuses to their illogical conclusions. If it’s a bank or other business you can, for instance, suggest that you can do business at the premises of a more comfortable (competitor’s) location. That should raise some eyebrows, and perhaps the thermostat a tad.
Here are some more tips on energy savings from the American Council for an Energy Efficient Economy.