Border carbon adjustments, or some equivalent policy at our border, are absolutely critical if we're going to proceed with more ambitious climate policy. What we don't want to do is apply high charges to domestic industry in a way that just moves them overseas and does nothing for emissions. We have to have a border carbon adjustment or some equivalent.
One advantage of moving to a stricter pricing system and one that applies eventually the full carbon price to industry is that you will also be able to rebate that carbon price for exports. Our current regulatory-based system, the output-based pricing system, would not allow rebates to exporters.
I think border carbon adjustments are critical, and I think they should be done in tandem with moving to a full carbon pricing system over the course of this decade.