I would agree that littering is utterly unacceptable, but the way that we respond to such a problem is not just to clear up litter, it’s to persuade people to change their attitudes, their behaviours and their culture. Indeed, under the Well-being of Future Generations (Wales) Act 2015, it’s imperative that we find ways to avoid such problems emerging in the future. So it’s not just for us to clear up on trunk roads; we are having a very difficult time to find the resources to do just that, just as local authorities are struggling, given this continued period of austerity. But, longer term, we need people to change their behaviours in order to keep our landscapes clearer and more attractive, not just for visitors but for people who live in them.