Sure. We're going to have to do a lot of carbon capture and storage in order to reach carbon neutrality, or at least that's what all the modelling seems to suggest at this point. That means we need to be careful about where we use it, especially in the short term. It's still an expensive technology. There's still a lot of uncertainty with regard to storage itself and the performance of the technology to capture emissions.
We know that theoretically we can get to 90-something per cent of capture, but so far, we're very far from that. We need to think about whether or not it's a good idea to do this in a sector where there are other options to reduce the carbon footprint, while other sectors may be left wanting. I mentioned earlier that in the production of cement and steel, for instance, it is much more difficult to consider alternatives for reducing emissions, apart from drastic cuts in production.