Greg we regularly had "gipsies" moved onto a piece of open ground near us, a place that was part playing fields, and part peaceful riverside walk. When they had gone there were piles of garden rubbish, along with the usual detritus of broken kids toys, and household and personal waste. There was also a blackened and burned circle about 10' across where they had been burnig the plastic covering off cable they had 'acquired' [clean scrap is worth more], how many PCBs and Phenols along with other deadly chemicals they released in doing this I hate to think, but 3 years later the grass still hadn't grown back. Add to that the fact that our dog received a very deep cut on her paw due to broken glass left there in the grass, and it will become clear, what chaos and pain their "recycling" can cause.
Giok