This, from Captain Ed cracked me up today. Apparently the amount of calories used up while walking to town, when re-consumed with the farm products you eat to make up for the exercise contributes more to global warming than just driving the car would.
I’m going to start a new business. Selling carbon offsetst to exercisers! Where is Al Gore when you need him.
(ps The title just pertains to looking at numbers in ways to fit your conclusion. Do people who walk a mile or two to get someplace really eat more to compensate for that? Give me some money and I’ll study that for you.)