I genuinely, Cefin, don't want to pre-empt what might be the outcomes of this opportunity we have for a four-yearly review, and as I've mentioned before on the floor of the Senedd, we're hoping to shortly make the appointment of the independent chair of that, who will take forward this review. It should be what I would encourage the chair to do, although not direct them, which is to make full use of this review opportunity to see what has succeeded and what has failed. Just to be clear as well, because, often, we have a slight schizophrenia about our rivers, in some respects, we are doing well, although you wouldn't always understand that from what you hear out there. So, it is worth reflecting on the fact, Chair, that, overall, 44 per cent of our rivers in Wales, in terms of ecological status, have been ranked as 'good' or better. That, by the way—and this isn't a ranking table or whatever, but just of interest to the committee—compares with 14 per cent on the other side of Offa's Dyke. However, and it's a big 'however', we know the extent of pollution effects, including on some of our special areas of conservation rivers, but also wider in the landscape of Wales as well. We know that it's not only agricultural pollution, that there is house building and development pollution, there is the old Victorian, antiquated CSO infrastructure that we have, combined sewage and water overflows. All of that is part of the piece as well.
But we do know that agriculture will have to play its part in this as well. Now, you and I—thank you for recognising the fact that we had a previous, brief relationship as the designated Member and so on within the co-operation agreement. But even before that, you and I engaged on this issue, as I did with other members of this committee on the challenges ahead, and we took a visit out to parts of west Wales and we looked at where it goes badly wrong. We looked at where it goes badly wrong. When we drove down there into an area to see the despoliation of our rivers and the soil—soil that wasn't soil, it was mud. So, we know what we have to do, but we have to also work with farmers to do it.
So, this four-yearly review with an independent chair gives us a real opportunity, actually, now, to say, 'Well, what is working in areas? What is not working in others?' It's not only to do with where we put public support, it's also to do with regulatory baselines, as well, of how we look at farms, as well. It's not all to do with penalties and so on, it's also to do with working with farmers to get best practice happening out there, but it needs to be a proper portfolio of ways forward.
I don't know, Gian Marco, whether you want to touch on some of the areas that we'd be interested in taking forward, both with the SFS, but also outside of that, in order to deal with it, because it's undoubtedly the case that we have a significant issue to deal with with agricultural pollution. We cannot shy away from it, and before I bring Gian Marco in, the reason we can't is because, everywhere I go in this role, and previously, people have told me in the food and drink industry the reason we are doing so well, for example, on exports, as well as domestically, of Welsh produce is based on that this is a green and pleasant land, that our animal welfare standards are the highest and that the way that we look after the environment is the best. So, every headline that suggests that we're not doing that is to the detriment of it. Our export markets in places like the middle east and the far east are based on that, that's what people are asking us for and asking of our food supply chain, so we need to get this right. Gian Marco.