An international non-profit organization, IAPWS is "concerned with the properties of water and steam, particularly thermophysical properties and other aspects of high-temperature steam, water and aqueous mixtures that are relevant to thermal power cycles and other industrial applications." Students can learn many basic facts about water and steam including the concepts of superheated and...

This Web site contains a June 2003 report from the Economic Research Service of U.S. Department of Agriculture. The report offers a detailed analysis of livestock and poultry manure management for water quality in the U.S. The studies included in the report occur on multiple scales: 1) a farm-level analysis of "on-farm technical choice and producer costs" across the U.S., 2) a regional analysis of...