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The purpose of NASA's Earth science program is to develop a scientific understanding of Earth's system and its response to natural or human-induced changes, and to improve prediction of climate, weather, and natural hazards.
Earth science research and news. Read science articles on air quality, geology, meteorology, oceanography, paleontology and science and the environment.
American Geological Institute resources for teachers and students. Includes searchable database of earth images, geologic time scale, and interactive features.
