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| Astronomy Tools |  | Arlin Crotts |  | The Department of Astronomy and Astrophysics provides a list of related Internet resources. |
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| Biogeochemical Cycles |  | Dickson Despommier/Columbia Interactive |  | This vivid animated lesson is from the e-seminar The Normal Environment: How Things Got This Way, with Dickson Despommier. Learn and see how carbon, oxygen, nitrogen, sulfur, and phosphorous circulate among organisms and the environment. |
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| Climate Data |  | International Research Institute and Lamont-Doherty Earth Observatory |  | A comprehensive searchable database of climate data. It contains a large number of climate models. |
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| Columbia E-Guide: Numerical Data Resources |  | LibraryWeb |  | A comprehensive gateway and research guide to the statistical and numerical databases available through the University's Electronic Data Service (EDS). Prepared and maintained by CU Library and AcIS staff. |
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| Ecoregions |  | Dickson Despommier/Columbia Interactive |  | This vivid interactive map helps users to understand Earth's ecoregions, including deserts, tundra, rainforests, wetlands, and many more. From The Normal Environment: How Things Got This Way, taught by Dickson Despommier. |
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| Environmental Tracer Group |  | Lamont-Doherty Earth Observatory |  | This group uses deliberately-injected and transient tracers to investigate earth science problems in the areas of oceanography, continental waters, paleoclimatology, geochronology, and geology. Included on the site are information about instruments and facilities used, a group directory, photo gallery, projects, publications, and links to other resources. |
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| Environmental Treaties and Resource Indicators |  | Center for International Earth Science Information Network (CIESIN) |  | ENTRI is a comprehensive database of environmental treaties and national resource indicators. |
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|  | Columbia College |  | This addition to Columbia's Core Curriculum introduces students to exciting ideas at the forefront of scientific research and develops the habits of mind characteristic of a scientific approach to the world. |
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|  | |  | CUMC's HIV Prevention and Treatment Research unit conducts vaccine studies and sets new standards of care for HIV patients. |
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|  | Columbia University |  | The International Programs Directory is a searchable index of ongoing international programs involving Columbia University faculty, staff, and students. |
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| Introduced Species Summary Project |  | Dr. James Danoff-Berg |  | The goal of this project is to provide information that would help a natural resources manager or concerned citizen to understand the basic biology of a non-native species and whether and how to respond to its arrival. |
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|  | Earth Institute |  | At the World Summit on Sustainable Development in Johannesburg in 2002, Columbia University researchers presented scientific advances in critical areas where immediate investment is required to relieve extreme poverty and get ahead of global climate change risks. |
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| Lamont 4D Technology |  | Lamont-Doherty Earth Observatory |  | On this website you will learn about 4D technology, including what it is, how it is used, and how it benefits mankind. |
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| Neural Communication |  | Darcy Kelley/ Columbia Interactive |  | In this animation, Columbia biology professor Darcy Kelley explores how thoughts and actions are carried as electrical and chemical signals transferred from one cell to an adjoining cell across a gap, called a synapse. A basic understanding of chemistry and biology is required to follow the signal process. |
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| Poles Together |  | Columbia Center for New Media Teaching and Learning |  | Follow the journeys of polar explorers Nansen, Shackleton, Scott and Amundsen by examining journals kept by the exploration teams, images, and other resources. Using a custom, CIESIN-designed, GIS map tool, students access recent data from the poles to compare the conditions the explorers encountered with current trends. They also perform role-play exercises that put them in charge of a virtual expedition. |
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| Population-Environment Research Network |  | Center for International Earth Science Information Network (CIESIN) |  | The Population-Environment Research Network seeks to advance academic research on population and the environment by promoting online scientific exchange among researchers from social and natural science disciplines worldwide. |
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| Responding to Climate Forecasts: Using Scenarios in the Planning Process |  | Columbia Center for New Media Teaching and Learning/Jennifer Phillips |  | A step-by-step guide for using the strategy of scenario building to generate plans based on climate forecasts. Each step includes a short description of the issues you need to consider, the information you need to gather, and where you can go for more information. The site has three main sections: Principles (the theory), Cases (theory applied), and Tutorials (do-it-yourself guide.) |
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| Seasonal Climate Prediction for Regional Scales |  | CCNMTL |  | In this series of multimedia learning modules led by Neil Ward, head of forecast development at Columbia University's International Research Institute for Climate Prediction, students learn to apply state-of-the-science seasonal climate forecasts to local environments. |
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| SEE-U: Summer Ecosystem Experiences for Undergraduates |  | Columbia Center for New Media Teaching and Learning |  | This is the website of the five-week field ecology program , SEE-U, conducted by CERC and CCNMTL. The program aims at developing a global understanding of biomes. Sites studied include the Atlantic Forest (Brazil), the Biosphere 2 Center (AZ), and Black Rock Forest (NY). Resources provided include a detailed program syllabus, lecture modules and links to related websites. |
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| Socioeconomic Data and Applications Center (SEDAC) |  | Center for International Earth Science Information Network (CIESIN) |  | SEDAC's main website providing data resources, interactive applications, and informational resources that support the integration of socioeconomic and Earth science data and help SEDAC to serve as an "Information Gateway" on the Earth and social sciences. |
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| The Upper Atmosphere and Earth Below |  | Dickson Despommier/Columbia Interactive |  | A glossary of terms used in the study of the upper atmosphere and how it affects Earth below. From the e-seminar Atmosphere: Stratospheric Problems, with Dickson Despommier. |
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| Timeline: the Evolution of Complexity |  | Dickson Despommier/Columbia Interactive |  | Follow the evolution of complexity in Earth's ecosystem from 4.9 to .5 billion years ago. This animated timeline including audio narration by Dickson Despommier is from the e-seminar The Normal Environment: How Things Got This Way. |
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| Trophic Levels of the Serengeti Plain |  | Dickson Despommier/Columbia Interactive |  | In this multimedia excerpt from The Normal Environment: The Way Things Are Now, the second e-seminar of the series "Medical Ecology," Professor of Public Health and Microbiology Dickson Despommier examines the feeding relationships–known as trophic levels–among organisms of the Serengeti Plain in Africa. |
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| Turro Group Page |  | Department of Chemistry |  | Information, full-text research articles, and related resources in the area of organic photochemistry. |
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