Luxembourg, 28/06/2002 (Agence Europe) - "The eutrophication of the eastern part of the North Sea, of northern France and of Norway has its origin in the discharge of nutrients, including nitrogen, by the basins draining into the North Sea and the eastern part of the English Channel. The Seine alone produces an annual flow of over 100,000 tonnes of nitrogen, to thirds of it of agricultural origin, in a total flow of 400,000 tonnes a year going from the Channel to the North Sea", explained...