I’ve been riding my bike to work lately when I can. I can’t always do it, because some days I need a car to go out on interviews. Herein lies my greenhouse guilt dilemma.
According to this analysis, cycling to work will cause a net increase in greenhouse gas emissions over my lifetime. While in the short run using my bike instead of a car leads to a net reduction, it also has the unexpected negative side effect of improving my health. Because I’m therefore likely to live longer, my net lifetime greenhouse gas emissions go up.
I think I have a solution. To make my cycling carbon neutral, I plan to take up smoking.