Seriously, i'm in awe. Your brain has more wrinkles than mine. I've always liked to work with people that know more than I do about a subject and could explain it well.

I think the part about population growth that bothers me most is the consumption of natural resources is ever increasing.

Not sure which site I was reading, but it said that the U.S.A. would need five earths to satisfy the demand for resources. I believe it said India would need .8 earths.