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The Ecological Society of America (ESA), the nation's leading professional society of ecological scientists, is an essential source of information for those addressing the many complex tasks associated with watershed management. A recently established occasional publication series, Issues in Ecology, is an especially useful resource for citizens, resource managers, policymakers, and others designing and implementing watershed approaches to environmental management. Each Issues in Ecology paper is designed to report, in language understandable by non-scientists, the consensus of a panel of scientific experts on issues relevant to the environment. Issues in Ecology reports are available on the ESA website :

Nonpoint Pollution of Surface Waters with Phosphorus and Nitrogen (full color PDF version, 472KB, 14 pages)

This module is one of the Watershed Academy Web Certificate Program's required modules. After you have finished it, return to this page and Click for self-test.

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