I think the world population really is getting out of hand. About a month ago, there was a little news coverage on this issue. My take on this is that
we should start having only a maximum of 2 kids per family (after the first baby, just use lots and lots of protection). Maybe there should be a rule
that if there is a third baby, there should be a penalty / fine (like a percentage of your annual income etc.). The world has a lot of resources
to go, but you're right that we will eventually run out. China is already packed, which is why they have a rule that you can have only 2 kids (I'm not
too sure about this. My friend from China told me about it.). We should have and enforce the same rule.