The other thing I think that's important to note here is that, actually, the Labour Party and the Green Party have always been keen on a carbon tax. And actually what we have is an ETS—they're quite different beasts—and my concern, and, in fact, the National Party's concern with this bill and other amendments that are being snuck into the process is we are moving the ETS more and more towards a carbon tax. And just to explore that a bit further, a carbon tax puts a price on carbon, and it's obviously aimed at changing behaviour by that price. In contrast, an emissions trading scheme puts a cap on emissions and the price will be found by the market. They're quite different approaches, but what we're ending up with, with all these changes, is, I fear, some sort of hybrid which is going to end up in the middle and not doing much. We support an ETS, and, in fact, we have done for 20 years. It's a very important and, I think, very good tool. In fact, the climate commission's work in the report that's just been released recently shows that we can get to 85 percent to net zero by having a carbon price of $35 a tonne—we're at $40 now. At $50 a tonne, we get all the way to net zero. That's really important, but what we don't want is policies coming in over the top of the ETS which will blow the cost out needlessly. In fact, the Climate Change Commission's own work shows that they believe the New Zealand unit price will be $250 at the end of it—five times what it needs to be because of the expensive policies they are recommending. 