In 2010, a Total Maximum Daily Load (TMDL) was established for the Chesapeake Bay, defining the limits on emissions of nitrogen, phosphorus, and sediment necessary to reverse declines in the Bay’s quality and associated biological resources. Agriculture is the largest single source of...

Conflicts over agricultural water use have been an issue in the western United States and worldwide since the widespread development of irrigation. Water management institutions serve to ration scare water resources, but can impose costs on water uses. These costs can be difficult to measure as...

Knowledge of the benefits and costs to water users is required for a complete assessment of policies to create incentives for water-quality improving changes in agricultural production. A number of benefit estimation methods are required to handle the varying nature of water quality effects....

Nitrogen is an important agricultural input that is critical for crop production. However, the introduction of large amounts of nitrogen into the environment has a number of undesirable impacts on water, terrestrial, and atmospheric resources. This report explores the use of nitrogen in U.S....