Scientists change their minds over Clyde sludge dumping

The case for a precautionary approach to the dumping of wastes at sea has been powerfully reinforced by a study of the effects of sewage sludge disposal in the Firth of Clyde.1 Only a few years after eminent scientists claimed that the operation would contain pollutants within a small area, the study has shown that it has contaminated hundreds of square kilometres of marine sediments with organochlorine chemicals.

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