That's a planning question and a policy question. It is generally recognized among urban planners that in a lot of ways we've been going the wrong way in the last 30 to 40 years, in terms of really expensive infrastructure that can't support itself because there's simply not enough tax base per unit of land.
There's going to have to be some form of retrenchment one way or the other. It is very much a matter of smart development. You can create a dense ghetto, or you can create a very dense high-end neighbourhood, or you can find something in between. But the potential is there.
I agree with you. Again, every possible measure has to be pursued to bring our emissions down to our target levels, because most of our trading partners will be looking for something in the order of 80% reductions within a couple of decades.
So we have to pursue every means we can.