Increasingly, it looks like the end is going to be caused ultimately by a fuel crisis. A fuel crisis, which triggers large scale war, economic destabilisation, and ultimately a return to pre-industrial life.
Meaning that a lot of people will die.
The green revolution has been a boon - and a curse. The massive growth in population has been supported by large scale farming, global transportation, fossil-fuel derived fertilisers. And once the wells stop producing, or it takes more than one barrel of oil to get a barrel's worth out of the ground, all bets are off.
Russia is pressuring Ukraine, China is pressuring its regional neighbours. East Timor has a big, largely untapped gas field - what happens when either Australia, Indonesia, or even China decide that those fields are strategically important? Australia has significant coal reserves, but would they be enough to keep things going?
Why do we not build the infrastructure to help lessen those shocks when they happen? Why don't we build so that we aren't reliant solely on one, finite resource?
The future will be owned by those preparing now for it.