ecco
Veteran Member
and this planet has sufficient resource for 9billion humans
almost there
and then the chaos begins
On the other hand, the way we are drastically impacting the normal pace of change, we may never get there. If AGW, or new plant diseases, destroys our ability to feed people, we may find that 5 billion is not sustainable.
Large numbers of people rely on seafood. It is quite possible that we will make all seafood inedible.