The problem is that the Earth is largely uninhabitable (oceans, swamps, permafrost, mountain ranges, deserts, etc.). There are huge tracts of my own western Canada, sprinkled with small cities. But the energy required to move the raw resources out, and to move the human resources in to extract them, are approaching unsustainable.
Long story short, it's all about fossil fuel. When that run's out, so does our lifestyle.
Edit to add: I'm sorry, that came off way more negative than I intended.
All I meant was, was that in the next few generations we are going to have to collectively address how we're going to deal with our problem. This is a warning from the hinterland.
Edited by Likely Guy, 11 November 2012 - 04:56 AM.