A Norwegian research scientist can trace PCB pollution on the seabed along the Norwegian coast directly back to the manufacturer. Norwegian authorities are considering suing chemical giants such as Monsanto and Bayer for millions of pounds. They may now pay for their misdemeanours, says Tom Erik Økland
A new threat to whales, dolphins and other marine life exists in the worlds oceans, as the US Navys new sonar technology could have huge long-term effects on their whole way of life. Leigh Calvez reveals why the lords of the sea aren't singing any more.