Originally Posted by rschleicher

One calculation that I would like to see is how much CO2 is produced by human breathing. Less than an SUV in terms of CO2 production rate, of course. But the human engine is running all the time, even while sleeping. (Let alone all those pesky animals.) Perhaps recreational (i.e., non-commuting) bicycling should be restricted, since an exercising human will produce more CO2 than a resting/idle human. (I am being sarcastic about the cycling ban, in case anyone is not sure.) Don't get me started on human methane production (aka farting)...