Donald Anderson James Cloern Chris Elfring Charles Hopkinson Brian Lapointe Tom Malone Nancy Marcus Karen McGlathery Andrew N. Sharpley Dan Walker Robert Howarth 2000 <p>Over the past 40 years, antipollution laws have greatly reduced discharges of toxic substances into our coastal waters. This effort, however, has focused largely on point-source pollution of industrial and municipal effluent. No comparable effort has been made to restrict the input of nitrogen (N) from municipal effluent, nor to control the flows of N and phosphorus (P) that enter waterways from dispersed or nonpoint sources such as agricultural and urban runoff or as airborne pollutants. As a result, inputs of nonpoint pollutants, particularly N, have increased dramatically. Nonpoint pollution from N and P now represents the largest pollution problem facing the vital coastal waters of the United States.</p> application/pdf en Ecological Society of America Nutrient pollution of coastal rivers, bays, and seas article