After moving to a farm from the suburbs a lot come to light.
The water here is drinkable, in the suburbs it is so bad it even kills plants to water them. Awful amounts of chlorine are dumped into the water supply in cities and suburbs. I agree, that to buy your drinking horn from a fellow druid is the best, as mine was artfully carved. The web site is only one of many.
What can be done in the big picture?
Recycling requires incentive in the overly capitalist world. Remember picking up soda bottles and cashing them in for 5 cents each?
A system of this kind could help. Say a dollar for every pound of plastic? It does a few good things. It gets the trash recycled and it gives a whole new light to trash.
But we could do more. If we recycle, the amount of trash we actually need to dispose of becomes compost, and the rest is reused.
So what do you do about plastic bags? I agree this has become an issue. Cutting down trees for bags is bad. But at least they decompose.
It is a problem. The Bloom grocery store sells grocery sacks, and also gives you good sturdy reusable paper sacks for free. This kind of system encourages us to get away from disposable plastic bags. Those disposable plastic bags are awful anyway, never holding the groceries right.
Clean up of the ocean is a matter of a larger scale responsibility. Getting people to stop throwing trash overboard ...
This should not be a problem, but it is. Tossing trash from the beaches is also an issue.