Well, I thank Joel for that question, and, yes, the point you raise in respect of the role of local authorities is right, and also in terms of the obligations of private landowners who have coal tips on their property, or even sometimes part of coal tips, as some of the complications. This is an issue I think that has been identified by the Law Commission and is part of the ongoing work, and I'm sure will be part of something that we need to address in respect of any regulatory regime with regard to coal tips. And when we have the full report and the recommendations and we've had an opportunity to consider those and also the substance of legislation, I'm sure that that will be a significant part of it.