Originally Posted by
tjspiel
That's kind of funny actually. Do fit people retire later in life and do retired people use as much or more energy than working people? I'm just curious if they took that into consideration. Do fit people and sedentary use the same amount of energy in general?
I believe he limited his discussion purely to the energy costs of driving vs biking all else being equal, so if cycling is associated with other changes in consumption as well, he didn't address them. So if you want to lower your carbon footprint and the only thing you do is switch to biking to work, you aren't going to have much impact.