This is very much an area where I think that the Welsh Government and UK Government need to undertake joint work, very much so, especially given the fact that, as David Rees sets out, Wales is very much disproportionately affected by the issues of the old mine works, as we are naturally—as follows—with the issues of the coal tips and so forth. The work, which has already been undertaken in respect of coal tips with the UK Government and the Coal Authority, I do think provides some good foundations for that work, but clearly it needs to be expanded to ensure that it does encapsulate all of the concerns that David Rees has described this afternoon.