Hi,
I think the answer is very obvious:
1) our overshoot today and 20 years ago was already a factor of 10 and more too
large, resulting in the draw down of the natural capital.
2) according to the IPAT equation one finds that the unsustainable resource consumption in the richer, so called civilized countries, is roughly is roughly 3 times larger than the world per capita
average and thus 1 person in the rich OECD countries counts like 10 or more people
in Nigeria (or probably much more). Ignoring this fact is wrong!
3) energy resources are already close to the start of the decline and so will population
follow any time soon. Lets face reality.. those large consumers (including us!)
are the trouble makers and should learn to give up what we consider as being
civilized. Thus accept that our culture (called by whatever name) is not sustainable
and will end either by collapse or by a rational decision to terminate our
civilization (by degrowth..) .. still far better option than collapse.
but, as it looks we are not capable of facing reality and thus will go through collapse
in the western world and take the rest with us.
good night and good luck!
michael