And why does rust stain Glass so?

I see the World is changing:
Changing too fast for me.
 I see it from an aesthete's point of view;
The beautiful remote places, have almost ceased to be.
 What is left is something that should not be;
Rubbish in Paradise;
 Simply bits of plastic left down by the sea.
Bottle tops, clothing hooks & tiny plastic label tags from our jamboree.
 Polystyrene poking up from beneath the desert scree..........
it is as far as the eye can see.
thin limbed Lambs on the scrap heaps of technology;
  Again; it once belonged to me.........
Prize metals lie in a prison of plastic that has to be;
Removed by heat and tiny hands in a desolate land of poisonous smoke where all get kippered indeed.
 How far can we go now? As we spread our thoughtless mass of discarded impulses and wants for all the world to see.