NASA's Earth Observatory Data & Images page provides periodic updates on data availability. The seventeen datasets listed here include the many types of scientific data collected within the time period 1979-2001, with recent data on 4km2Fires, Ozone, and UV Exposure. By clicking on a specific time period and data type, the user is directed to the appropriate data selection.

A joint project of the Norwegian Institute for Nature Research and the United Nation's Environmental Programme, Global Methodology for Mapping Human Impacts on the Environment (GLOBIO) aims to "present a simple visual overview of the cumulative impacts of increasing resource demands on man and the environment." Hundreds of environmental impact studies were synthesized with satellite imagery,...