The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.

The British Oceanographic Data Centre (BODC) is a national facility for looking after and distributing data concerning the marine environment.

Environment Canada offers multiple data access services to specialized users that require information at regular intervals and in an unprocessed form.

The CEBS database houses data of interest to environmental health scientists. CEBS is a public resource, and has received depositions of data from academic, industrial and governmental laboratories.

DOE’s officially designated data centers provide expertise and specialized services to ensure that important data collections are stored appropriately, processed and organized as needed, and made available for reference or reuse.

The EDG is a gateway to Web-based geospatial information and information services. It enables data consumers to discover, view and access geospatial resources (e.g., data, services, or applications) made available by EPA's program offices, regions, and labs.

The STORET (short for STOrage and RETrieval) Data Warehouse is a repository for water quality, biological, and physical data and is used by state environmental agencies, EPA and other federal agencies, universities, private citizens, and many others.

Sharing European environmental datasets, maps, charts and applications.

The GCMD holds more than 25,000 Earth science data set and service descriptions, which cover subject areas within the Earth and environmental sciences.

The Environmental Data Explorer is the authoritative source for data sets used by UNEP and its partners in the Global Environment Outlook (GEO) report and other integrated environment assessments.

This site provide Earth science data, information, and services to research scientists, applications scientists, applications users, and students.

The Knowledge Network for Biocomplexity (KNB) is a national network intended to facilitate ecological and environmental research on biocomplexity.

The National Atmospheric Chemistry Database (NAtChem) is a data archival and analysis facility operated by the Science and Technology Branch of Environment Canada.

OAA’s National Climatic Data Center (NCDC) maintains the world's largest climate data archive and provides climatological services and data to every sector of the United States economy and to users worldwide.

The National Forestry Database describes forest management and its impact on the forest resource, develops a public information program based on the database and provides reliable, timely information to the provincial and federal policy processes.

The National Snow and Ice Data Center (NSIDC) supports research into our world's frozen realms: the snow, ice, glaciers, frozen ground, and climate interactions that make up Earth's cryosphere.

NEBC works to enable environmental research in the molecular age.

The information system PANGAEA is operated as an Open Access library aimed at archiving, publishing and distributing georeferenced data from earth system research.

The Polar Data Centre (PDC) coordinates the management of data collected by UK funded scientists in the polar regions.

RAND California contains more than 170 databases at the national, state, county, and city levels.

The British Atmospheric Data Centre (BADC) is the Natural Environment Research Council's (NERC) Designated Data Centre for the Atmospheric Sciences.

UK air quality data and statistics archive.