I think when we, as responsible people who go out into the countryside, .. this year particularly,... we need to go out prepared to deal with as much rubbish as we can.
Its all very well complaining to each other and local councils, but that will just predispose them to make more rules and those of us who enjoy the countryside responsibly will find our freedoms curtailed to a massive degree.
After all there are some trying to clean plastic out of the sea,... and that is a much more difficult and thankless task!
I know its not fair, but if we lead by example, and talk to those we see transgressing even in small ways, we can do a great deal to stop this getting stupid.
We won't stop everything, and it seems a pretty pointless and thankless task, but we all need to do everything we can.
I regularly talk to strangers and thank them for picking up their dog mess, and have a little friendly word about how disgusting some people can be, and how they abuse the facilities put in place for them.
There may be some that you don't wish to approach, such as a bunch of drunks, but a quick photo taken surreptitiously and a report to the police would be of use to stop this sort of thing, especially if they have a fire or bbq going.
Maybe its not nice to stop their fun ,but if their behaviour is against the code, or dangerous or, dogs off leads in lamb fields for instance we need to deal with it, and not walk away leaving the situation to get out of hand.
I know many of us do that, but perhaps we should redouble our efforts this summer, after all, its for everyone's benefit in the long run.