sorry, I'm just pointing out that today we (the human population) are pumping around 30 billion tonnes more of CO2 yearly into the atmosphere than we were back in 1950, just by breathing.
Add to that all of the environmental costs of housing, clothing and feeding that extra 5 billion people Then add the environmental costs of lighting & heating, plus transport of both people & goods, etc etc . .
I vaguely recall a book/film (whatever) many years ago about a society that culled everyone over the age of 50 (I think it was 50, could have been 30)
