Amendment to treaty on dumping of waste at sea will remove sewage sludge from list of wastes which may be given dumping permit. / Parties to the treaties which regulate the dumping of wastes at sea have adopted an amendment to ensure that the dumping of sewage sludge at sea would be prohibited worldwide. The amendment to the London Protocol will remove sewage sludge from the list of permissible wastes - wastes which may be considered for dumping at sea. (....)