Just to begin, the depth of our targets is such that we need to do absolutely everything. We're going to need CCS. We're going to have to decarbonize our energy supply system. But we also need to address the consumption side of the economy.
Now, if you have $1 billion, you obviously have to parcel it one way or the other. But I would set dual priorities. Yes, you do need to apply it to CCS.
In some ways, this stuff is something we know how to do. So it's more of a policy question when it comes to cleaning up our urban centres. It's a matter of taking the policy initiative to do it, whereas CCS is still on the cusp of being a viable technology; all the bits are there, but it's going to need some proving.
But there are efforts around the world to do that. We are one of many doing it. In some ways, we should almost be in partnership with other projects to do that, and share our efforts, for example, with the Norwegians, the Americans, and everyone else.