Geo-wiki—founded in 2009 by the project partners the International Institute for Applied Systems Analysis, University of Applied Sciences Wiener Neustadt and University of Freiburg—to help improve the quality of global land cover maps
Global Change Master Directory—part of NASA's Earth Observing System Data and Information System (EOSDIS) and NASA's contribution to the Committee on Earth Observation Satellites (CEOS)—a directory of Earth Science data sets and related tools/services
Google Earth Engine—developed by Google, in partnership with Carnegie Mellon University and the United States Geological Survey—providing satellite images of environmental change
GRASS GIS (Geographic Resources Analysis Support System)—whose development has involved a large number of federal US agencies, universities, and private companies—used in academic and commercial settings around the world, as well as many governmental agencies and many environmental consulting companies
The Environmentalist—public interest news site covering politics, business, climate, history, lifestyle, world news, science, editorial, links and resources. Carried by major wire services (Reuters, USAToday, Sun-Times Group...).
Environmentmagazine.org—hybrid, peer-reviewed magazine and website on "Science and Policy for Sustainable Development", based in Philadelphia
Green Builder Media—based in Eastsound, Washington, publishes the North American monthly business-to-business sustainability and green construction magazine Green Builder Magazine.
Grist—online, non-profit environmental magazine and blog(s)—based in Seattle, Washington—"A beacon in the smog"
The Oil Drum—published by the Institute for the Study of Energy and Our Future—analysis and discussion of energy and its impact on society
Our World 2.0—online magazine created by the United Nations University—based in Tokyo, Japan—focuses on climate change, peak oil, biodiversity and food security
Ecojesuit—published by the Global Ignatian Advocacy Network-Ecology (GIAN-Ecology) of the Society of Jesus in Brussels and Manila
EnviroLink Network—based in Pittsburgh, Pennsylvania, USA—a clearinghouse for environmental information on the Internet, with chat rooms, bulletin boards, electronic mailing lists, and a worldwide forum
Environment & Society Portal—the Rachel Carson Center's open-access digital archive and publication platform. It makes environmental humanities research accessible to academic communities and the interested public worldwide, reaching more than one million users. In addition to its peer-reviewed born-digital publications (Arcadia and Virtual Exhibitions) and the Rachel Carson Center's journal RCC Perspectives, the portal curates scholarly and popular materials in its Multimedia Library.
GEOLibrary—materials posted from various governmental and non-profit institutions—occupational safety and health and environmental health information
GLOBE Program—operated by the University Corporation for Atmospheric Research (UCAR) out of Boulder, Colorado—a worldwide, hands-on, primary and secondary school-based education and science program
Greenlifestyle—originally a mailing list in June 2007—with an ongoing focus on the exchange of practical and cost-effective green living tips and information that can be applied in Indonesia
National Institute for Environmental eScience (NIEeS)—was a collaboration between Natural Environment Research Council (NERC) and the University of Cambridge—promoting and supporting the use of e-Science and grid technologies within the field of environmental research (not updated since August 2008)
Wiser.org—user-generated online community space for the social and environmental movement—maps and connects non-governmental organizations (NGOs), businesses, governments, and individuals addressing global issues
Berkeley Earth Surface Temperature (BEST)—managed by a team of scientists—an effort to resolve criticism of the current records of the Earth's surface temperatures by preparing an open database and analysis of these temperatures and temperature trends
CLIWOC (climatological database for the world's oceans)—funded by the European Union—drawing on British, Dutch, French and Spanish ships' logbook records for the immediate pre-instrumental period, 1750 to 1850
CoolCalifornia.org—created by a team of California State agencies, universities and a nonprofit organization—a website for Californians with resources to help them reduce their impact on the environment and combat climate change
Global Atmosphere Watch (GAW)—established by the World Meteorological Organization—monitoring trends in the Earth's atmosphere
Global Historical Climatology Network (GHCN)—managed by the National Climatic Data Center, Arizona State University and the Carbon Dioxide Information Analysis Center, a database of temperature, precipitation and pressure records
RealClimate—hosted by Environmental Media Services—a commentary site by working climate scientists
Skeptical Science—created in 2007 by Australian blogger and author John Cook—publishing articles on current events relating to climate science and climate policy, and maintaining a large database of articles analyzing the merit of arguments commonly put forth by those who are skeptical of the mainstream scientific opinion on climate change
TerraPass—based in San Francisco—a social enterprise that funds greenhouse gas reduction projects in the United States, and offers carbon offsets to individuals and businesses who wish to reduce their carbon footprints
ARKive—launched in the UK by Sir David Attenborough—a global initiative to locate and gather films, photographs and audio recordings of the world's species into one centralised digital library, for increased environmental awareness
Biosafety Clearing-House—established by the Cartagena Protocol on Biosafety—to facilitate sharing of information on living modified organisms (also known as GMOs)
Alsos Digital Library for Nuclear Issues—part of the United States’ National Science Digital Library (NSDL)—a searchable collection of vetted annotations and bibliographic information for resources including books, articles, films, CD-ROMs, and websites pertaining to nuclear topics
Globe at Night—initially a NASA educational program—crowdsourcing measurements of light pollution in the night sky
Microwave News—independent and not aligned with any industry or government agency—reporting on the health and environmental impacts of electromagnetic fields (EMFs) and other types of non-ionizing radiation
Clean Energy Project—by the Department of Chemistry and Chemical Biology at Harvard University—a distributed computing project researching organic compounds for solar cells, polymeric membranes for fuel cells, and molecule assembly
Global Energy Network Institute (GENI)—non-profit research and education organization—with focus on the interconnection of electric power transmission networks between nations and continents, emphasizing tapping abundant renewable energy resources