This website provides information on international water law and policy. The International Water Law Project offers full text of many international and regional agreements, declarations and resolutions. Regional documents are organized by continent and then in many cases by waterway to reflect agreements for a particular river basin. The case law section provides examples from the Permanent Court ... Full description.

The World's Water is dedicated to providing up-to-date water information, data, and web connections to organizations, institutions, and individuals working on a wide range of global freshwater problems and solutions. This site complements and supplements the book The World's Water: The Biennial Report on Freshwater Resources, by Peter H. Gleick, Island Press, Washington, D.C. The section on Water ... Full description.

NSIDC offers data and information about the cryosphere; that portion of the Earth where water is in solid form, typically snow or ice. Topics include snow, glaciers, permafrost, sea ice, news and features, and others. The State of the Cryosphere section provides an overview of the status of snow and ice as indicators of climate change. An image and photo gallery provides historic photographs and satellite ... Full description.

This program provides scientific research and assessment to evaluate the effects of atmospheric deposition on aquatic and terrestrial ecosystems. A clickable map depicts locations of acid rain monitoring stations by state. This site also contains reports presenting data on acid rain trends and monitoring efforts as well as research performed on acid rain accumulation values. Information is also available ... 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 portal provides access to a variety of educational and supporting materials for students and teachers of microbiology about the ecology, diversity and evolution of micro-organisms. Materials include information about microorganisms, extremophiles, and extreme habitats. There is also information about the Microbial Observatories (MO), research projects to study extremophiles and their environments ... Full description.

Relevant sections in this resource include What are Harmful Algal Blooms (HABs), an Introduction to Algal Blooms and "Red Tide", Algae Species (which algae are responsible for the harmful effects?), Adverse Impacts, Human Illness (food poisoning associated with harmful algal blooms & information on diagnosis and treatment), HAB Distribution Maps, HAB events in the United States and around the ... Full description.

This site describes snow crystals and snowflakes. Although a common meteorological phenomenon, snow crystal growth is a fascinating and poorly understood process, in which remarkably complex and beautifully symmetric structures appear, quite literally, out of thin air. The many facets of snow crystals are described here, along with the attempts to understand their formation. Site highlights include ... 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.

This Web site includes shares the images, stories and discoveries that emerge from NASA Earth science research, including its satellite missions, in-the-field research and climate models. View global maps of NASA data, check out the Image of the Day and images of current events, and read feature articles and blogs. Also includes special collections of NASA images, including the World of Change series, ... Full description.