While the UN is celebrating the international year of biodiversity conservation groups in the UK worry that a rising number of isolated populations are in danger of becoming extinct. Biodiversity is in decline in the UK.
The article discusses the emergence of polychlorinated biphenyls (PCB). Manufactured from the waste products of the crude oil refining process and a range of chlorinated chemicals, these oily, syrupy liquids had a multitude of uses and have been described as being as near perfect as any industrial chemical can be. PCBs conduct heat but not electricity and they are not water soluble.