A British quarry is every day leaking toxins into the beautiful countryside after a chemical manufacturer used the site as a dumping ground for its waste for decades.
No one knows just exactly how devastating the seepage from Ty Llwyd quarry, near Caerphilly, south Wales, will be but nature cannot break down the notorious polychlorinated biphenyls, or PCBs.
Experts are concerned, not least because PCBs are known as the "forever chemical" because they largely can't disintegrate.
