A:
Ask Dr. Global Change - Assists researchers, students, educators, decision makers and the general public find information and data relevant to global environmental change [Multiple agencies involved]

Ask a Scientist About the Earth's Environment or Climate - Designed especially for students [National Aeronautics and Space Administration (NASA)]

Atmospheric Radiation Measurement Program (ARM) - Obtains field measurements and develops models to understand the processes that control solar and thermal infrared radiative transfer in the atmosphere and at the earth's surface [Department of Energy (DOE)]

C:
California Climate Change Portal - Combines information on the impacts of climate change on California and the state's policies relating to global warming with the California Climate Change Center, a virtual research and information website [Ad Hoc Organizations, California Energy Commission]

Carbon Dioxide Information Analysis Center (CDIAC) and the World Data Center for Atmospheric Trace Gases - Information on the greenhouse effect and global climate change [Department of Energy (DOE), Oak Ridge National Laboratory (ORNL)]

Center for Climate Change and Environmental Forecasting - The focal point in the DOT of technical expertise on transportation and climate change [Department of Transportation (DOT)]

Climate Change Atlas for 80 Forest Tree Species of the Eastern United States - [Department of Agriculture (USDA), Forest Service]

Climate Change Prediction Program (CCPP) - Research advances climate change science and projections using state-of-the-art science and climate models on scales from regional to global [Department of Energy (DOE)]

Climate Diagnostics Center (CDC) - Identifies the nature and causes for climate variations on time scales ranging from a month to centuries [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

Climate Information Project (CIP) - Promotes the use, distribution, and production of climate information [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

Climate Monitoring and Diagnostics Laboratory (CMDL) - Conducts research related to atmospheric constituents that are capable of forcing change in the climate of the Earth or that may deplete the ozone layer [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), Office of Oceanic and Atmospheric Research (OAR)]

D:
DOE National Institute for Climate Change Research (NICCR) - Goal is to mobilize university researchers, from all four regions of the country, in support of the climatic change research objectives of the Department of Energy [Department of Energy (DOE), Office of Science]

Deserts - Information on the effects of global warming on deserts [Environmental Protection Agency (EPA)]

E:
EPA Climate Change Site - Offers comprehensive information on the issue of climate change in a way that is accessible and meaningful to all parts of society – communities, individuals, business, states and localities, and governments [Environmental Protection Agency (EPA); Environmental Protection Agency (EPA)]

Earth - Explores the Earth's air, land and seas to learn more about our home planet and understand how other planetary systems may work [National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory (JPL)]

Eastern Earth Surface Processes - Homepage for the Eastern Earth Surface Processes Team with research studies in two general categories: climate change and geologic mapping. Links to research activities, available data sets, GIS lab, and publications [Department of the Interior, U.S. Geological Survey (USGS)]

Educational Sites for All Ages - All science subjects, with emphasis on biology, chemistry, and environmental science. [Department of Energy (DOE), Office of Biological and Environmental Research (BER)]

Energy and Environment at Lawrence Livermore - Pursues programs and performs key research in water and environment, energy, carbon and climate, the national nuclear waste repository, and aspects of homeland and national security. [Department of Energy (DOE), Lawrence Livermore National Laboratory (LLNL)]

Environmental Technology Laboratory (ETL) - Collaborate with colleagues around the world to create advanced remote sensors to meet environmental challenges [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), Office of Oceanic and Atmospheric Research (OAR)]

F:
Free Air CO2 Enrichment (FACE) - An ecosystem platform to study the effects of elevated atmospheric carbon dioxide concentrations on terrestrial systems. [Department of Energy (DOE), Brookhaven National Laboratory (BNL)]

FrogWeb: Amphibian Declines & Deformities - Provides information about recent global declines and deformities among amphibian populations. [Department of the Interior, U.S. Geological Survey (USGS), National Biological Information Infrastructure (NBII)]

G:
Geosciences - Research programs support research and related activities that advance fundamental understanding of dynamic physical, biological, and socioeconomic systems as well as interactions among those systems [National Science Foundation (NSF)]

Global Change - Provides information about global change publications available for sale from the U.S. Government Bookstore [Government Printing Office]

Global Change Data and Information System (GCDIS) - Locates multiagency news, data, publications, and research [Ad Hoc Organizations, U.S. Global Change Research Program (USGCRP)]

Global Hydrology and Climate Center (GHCC) - Studies the global water cycle and its effect on the climate [National Aeronautics and Space Administration (NASA)]

Global Warming - Presents information on the very broad issue of climate change and global warming [Environmental Protection Agency (EPA)]

Global change research - earth surface dynamics - Homepage for USGS Global Change Research projects which seek to understand the interrelationships among earth surface processes, ecological systems, and human activities. Links to projects with descriptions and products and downloadable poster. [Department of the Interior, U.S. Geological Survey (USGS)]

Goddard Institute for Space Studies (GISS) - Prediction of atmospheric and climate changes in the 21st century based on research of global datasets [National Aeronautics and Space Administration (NASA), Goddard Space Flight Center (GSFC)]

N:
NOAA Unmanned Aircraft System - This site provides information about measures that effect the world that can only be discovered via unmanned aircrafts. The system established test bed research and operations for climate change, hurricanes, Pacific storms, fisheries enforcement, and protection of marine sanctuaries and endangered species. [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

National Activities of the USGS Biological Resources Discipline - Links to national programs, including biomonitoring, bird banding, gap analysis, integrated taxonomy, breeding birds, nonindigenous species, and vegetation mapping. [Department of the Interior, U.S. Geological Survey (USGS)]

National Center for Atmospheric Research (NCAR) - Serves as a focus for research on atmospheric and related science problems to understand the earth system, including climate change, weather, and the impacts of all of these components on human societies [National Science Foundation (NSF)]

O:
ORNL Environmental Sciences - Conducts research on earth sciences, ecological management, environmental data science and systems, microbial systems biology, social sciences, and terrestrial ecology [Department of Energy (DOE), Oak Ridge National Laboratory (ORNL)]

P:
Paleoclimatology Program - NOAA - Paleoclimatic data, research, and information [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Climatic Data Center]

U:
US Climate Change Science Program - The Climate Change Science Program integrates federal research on climate and global change, as sponsored by thirteen federal agencies [Multiple agencies involved]

US Global Change Research Information Office (GCRIO) - Provides access to selected bibliographic data bases; web sites at the participating federal agencies; relevant environmental data, catalog, and library systems; and a section that deals with environmental education [Multiple agencies involved]

US Global Change Research Program (USGCRP) - Sponsors research to understand the vulnerabilities to changes in important environmental factors, including changes in climate, ultraviolet (UV) radiation at the Earth's surface, and land cover [Ad Hoc Organizations, National Science Foundation (NSF)]

US Global Change Research Program: Composition and Chemistry of the Atmosphere - Contains links to related web sites, including the USDA Forest Service's Global Change Research Program [Department of Agriculture (USDA)]