Again, you would either continue to have a rising carbon price and then you'd find out if biomethane slowly blending out of natural gas or some combination of that and blue or green hydrogen coming into those pipes was the solution, or if it was more people using electric heat pumps and even waste heat, but electric heat pumps, probably ground-sourced, in much of the country. The policy is that you either have a rising carbon price or you can do what I just described for liquid fuels.
In fact, I'm involved in the Climate Solutions Council in British Columbia, where—I'm pretty sure I'm safe to say, as this has been public now—we're working on a regulation for gas in pipes that is similar to the type of regulation that I've just been talking about with clean fuel. It says we know that you can't be using fossil fuel-derived natural gas in our buildings, so we're going to phase out the content of that in any kind of gas that's delivered by pipe to buildings over a 20- to 30-year time period.
When we do that, as I say, the market will decide if actually biomethane or some mixture with clean hydrogen is what we start using in buildings increasingly or if we move more to electricity. I think we shouldn't care which one we do, but just get the right policy in place.