This summary of the Third Assessment Report of the Intergovernmental Panel on Climate Change was compiled to describe the current state of understanding of the climate system as it was when the document was written in 2001. It provides estimates of the climate system's projected future evolution and the uncertainties associated with these projections. The report includes information on expected changes ... Full description.

This USGS Fact sheet provides an overview of water quality considerations. Each brief section contains definitions and descriptions. The topics include how to measure water quality, why there are standards and guidelines, the effect of natural processes, the effect of human activities, pathogens found in water, and links to sites in USGS with additional information. Full description.

As part of its Water Science for Schools site, the US Geological Survey defines industrial water use and includes several tables and maps showing where and how industry uses water. Students and teachers can look at their state and see 1990 data for how much ground water and how much surface water is used in industry as well as how much of that water is fresh or saline. Full description.

These Congressional Research Service reports from the National Library for the Environment concern water quality and other water policy issues. The reports span the period from late 1993 to the present, summarize congressional amendents regarding water legislation, and provide information on how national agencies and states are implementing these changes. Full description.

Ocean chemistry, particularly the carbon cycle, is featured in text and illustrations, with quantitative graphics and a lab demonstration. Graphics include the global carbon cycle from 1980-1989, annual carbon dioxide flux, ocean chlorophyll concentration east of Buenos Aires, and a cartoon showing upwelling of nutrients. Full description.

This data center provides information on waterborne commerce, vessel characteristics, port facilities, dredging, and lock performance. Data can be queried and are available by state, by commodity, and by waterway. Metadata are also available. Fact sheets explain the US waterways, their management, and their role in the economy. There are also numerous publications availabe via the site and an interactive ... Full description.

The database includes 150 water related treaties and 39 US compacts. The International Treaties and Compacts section is searchable by nation, basin, issues, conflict resolution mechanisms, non-water linkages, and date. US Compacts are searchable by state, basin, focus and date. For all treaties or compacts there is a summary of the agreement, the parties involved, allocations if applicable and other ... Full description.

This resource contains a broad range of content relating to life in caves, particularly in Texas and Missouri. It includes news and announcements relating to cave biology, a calendar of cave-related workshops and conferences, and current issues of the North American Biospeleology Newsletter. An extensive catalog of Missouri cave life includes a collection of photographs of cave-dwelling organisms. ... Full description.

This USGS site contains graphs, tables, and charts for the following ground water topics: What is ground water, ground water flow diagrams, importance of groundwater, and trends in ground-water use. Ground water quality, pesticides, aquifers, waterwells, artesian wells, sinkholes, and land subsidence are also covered. There are a variety of links within all of the above topics and a very complete ... Full description.

This clearinghouse-style site from the Environmental Literacy Councilprovides links to information, articles and educational materials on several environmental subjects, including water. The water-specific segment features information on topics ranging from hydroelectric power to eutrophication to rogue waves. The articles featured cover scientific and social aspects of water. The Teaching Water segment ... Full description.