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Center for International Earth Science Information Network
CIESIN is a distributed, electronic data and information system created to address the information needs of users concerned with understanding global environmental change and sustainable development issues. It includes the Socioeconomic Data and Applications Center (SEDAC) gateway to an easy-to-use interface for searching, viewing, browsing or ordering data and information.
Encyclopedia of Earth
The Encyclopedia of Earth covers a wide range of earth science topics, from the earth to its natural environments, to water profiles of selected countries. Well-written articles can be browsed alphabetically or by topic.
Paleo Pespective...On Global Warming
This NOAA perspective includes The Story: information on climate issues & the scientific study of climate variability, and The Data: comprehensive look at the instrumental & paleoclimatic data that shows how the Earth's temperature has changed.
Ozone Hole Tour
Introduction to the ozone hole, with broad ozone hole information, including the discovery, recent loss over Antartica, and the science of the ozone hole. Produced by the Centre for Atmospherci Science at the University of Cambridge.
U.S. Drought Monitor
Offers current drought conditions, forecasts and archival data, pertaining to the U.S. Produced by four Federal agencies.