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.

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.

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.

This poster outlines the major mission highlights of the Interstellar Boundary Explorer (IBEX) mission, a Small Explorer Earth-orbiting spacecraft that is designed to map the distant boundary between the solar wind from our Sun and the interstellar medium. This poster supports a full length planetarium show about the IBEX mission and the boundary of the Solar System. Each short activity/product helps ... Full description.

This poster outlines the major mission highlights of the Interstellar Boundary Explorer (IBEX) mission, a Small Explorer Earth-orbiting spacecraft that is designed to map the distant boundary between the solar wind from our Sun and the interstellar medium. This poster supports a full length planetarium show about the IBEX mission and the boundary of the Solar System. Each short activity/product helps ... Full description.

The GLAST paper model provides a short description of the scientific instruments on board the Gamma-ray Large Area Space Telescope, as well as links to other resources about the GLAST instruments. There is also a short description of how GLAST detects gamma-rays with the Large Area Telescope as well as the GLAST Burst Monitor detectors. The product includes three pages of parts that can be cut out ... Full description.

This lithograph introduces users to the fact that the Solar System has an interstellar boundary called the heliosphere. It includes an interactive activity. This lithograph supports a full-length planetarium show about the IBEX mission and the boundary of the Solar System. Each short activity/product helps to build awareness and engagement in the science and engineering aspects of the mission that ... 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.

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.