I think the short answer is that we don't know, but it could potentially be quite significant.
The design parameters around a potential border carbon adjustment could require pretty intense reporting from the farm gate to the exporter. We don't have the systems in place. A lot of good work is being done around building efficient measurement reporting and verification systems, but we really are still a pretty long way off from having something that could be easily put in place.
We also have the unfortunate reality that any time government has had to step in of late, to try to put a governmental touch around these systems, the experience has not been positive. We need to acknowledge that there's a high risk that this will end up being a burden.
I mean, the risk is already good that it will end up being a burden on the sector, one that's difficult to cope with, but it will likely end up being more of a burden than we think it will be, based on our past recent experience.