> Let's say we'd compare the carbon foot print of an average 10-kids Yemenite family with an average single guy with no kids living in Los Angeles. I'm not sure

> Let's say we'd compare the carbon foot print of an average 10-kids Yemenite family with an average single guy with no kids living in Los Angeles. I'm not sure if the single guy would have a lower foot print. If you assume those 10 children are also going to have 10 children each, and those children are also going to have 10 children, etc. You're talking 1000 people in 3 generations. Every birth is a tragedy.