The second point I just want to raise while I'm on my feet at this point relates to the general principle of offsetting. Really, if there's a matter in this legislation that is not comprehensively addressed, it is that matter. I'd like to have an indication of how the Minister sees that debate and that policy discussion being brought to light, particularly in terms of what I thought was a very thoughtful and good and well-considered report released in March of last year by the Parliamentary Commissioner for the Environment, the Hon—I think he might be even the Rt Hon Simon Upton. He argues in that document at some length that, essentially, the current approach of reducing climate change for countries like New Zealand relies very heavily on the planting of trees. But if you follow that logic to its natural conclusion, without change to emissions creations, sooner or later you run out of land to plant trees on no matter how big the landmass is. So that's not a long-term, sustainable proposition in terms of, eventually, sending the right messages about a transition to a low-carbon economy over a time frame.