I'd say the serious alternatives for producing heat and hydrogen in the oil sands now are what we're doing now: natural gas straight combustion; and other heavier fuels, meaning coal, asphaltenes, or residuals. If you don't care about climate, you just burn it. Indeed, part of the reason we have a natural gas issue is that, in a sense, everybody is assuming there is going to be a carbon price.
The cheapest way to make steam in the oil sands, if you want large amounts of steam, is the way to make steam that Angus told us about. We've been doing it since the 18th century, and that's to burn coal. The reason people aren't moving to open new coal burners now—I've been involved in a bunch of discussions with industry—is that they're assuming there will be a carbon price.
So the real competition is between nuclear, which provides heat without CO2 emissions, and other technologies that can provide heat without CO2 emissions. I would say the most serious competitor is CO2 capture and storage, using coal or asphaltenes or residuals as a fuel.
First of all, it's important to say that the oil sands are not the dominant CO2 emission source in Alberta. The coal-fired electric plants are. The oil sands get a lot of press, but if you wanted to manage the climate problem effectively, what you would do is focus on those coal-fired power plants, not on oil sands.
This speaks to my comment earlier about the fact that we need even-handed regulations. Government obviously tends to focus on particular things, but if you were to just put a carbon price on, what you'd see is much more action in the coal-fired power plants in Alberta, and maybe the ones in Ontario, than you would see immediately in oil sands.
In the long-run, for the oil sands, those are the options. I would say CO2 capture and storage is actually, in my view, more competitive against nuclear in the oil sands than is straight electricity to electricity. The reason is that CO2 capture and storage naturally makes hydrogen, which nuclear doesn't make so cost-effectively. If the competition is between a coal-fired power plant with CO2 capture and storage and a nuclear power plant for electricity production, in my view, they're pretty even competitors right now—and I take nuclear power very seriously.
For the oil sands, I wish Wayne well, and it would be great if he proves me wrong, but my guess is that nuclear in the oil sands is intrinsically less competitive because it doesn't make hydrogen so cheaply, and the oil sands need both. But on the other hand, because we're building so much capital, the reason Wayne actually might prove me wrong is the enormous rate of new capital construction in the oil sands.