Comparison of global river nitrogen export from natural ecosystems, agricultural systems, and sewage effluents, 1975 and 1990

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Comparison of global river nitrogen export from natural ecosystems, agricultural systems, and sewage effluents, 1975 and 1990

Nutrient loading is projected to become an increasingly severe problem, particularly in developing countries. Nutrient loading already has major adverse effects on freshwater ecosystems and coastal regions in both industrial and developing countries.

Year: 2007

From collection: Millennium Ecosystem Assessment

Cartographer: Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal

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