Project Dragonfly: Data Sources

From the United States Historical Climate Network, contains precipitation data from 1221 stations from 1900 through 2006.

The world's largest archive of climate data.

Envirofacts is the single point of access to select U.S. EPA environmental data. This website provides access to several EPA databases to provide you with information about environmental activities that may affect air, water, and land anywhere in the United States. With Envirofacts, you can learn more about these environmental activities in your area or you can generate maps of environmental information.

NESDIS provides timely access to global environmental data from satellites and other sources to promote, protect, & enhance the Nation's economy, security, environment, & quality of life.

Includes country fact sheets, and a great deal of information by country.

CDIAC's data holdings include records of the concentrations of carbon dioxide and other radiatively active gases in the atmosphere.

A good collection of links to a plethora of environmental data, including land use, fertilizer use, and agricultural use.