Agency for Toxic Substances and Disease Registry (ATSDR): ATSDR implements the health-related sections of laws that protect the public from hazardous wastes and environmental spills of hazardous substances. This site connects to various databases and includes lists of Superfund sites.
Climate Diagnostics Center: The mission of the Climate Diagnostics Center (CDC) is to identify the nature and causes for climate variations on time scales ranging from a month to centuries. It is a joint project of CIRES (Cooperative Institute for Research in Environmental Sciences) and NOAA (see below).
Department of Energy: The Department of Energy has four distinct missions: Energy, Defense, Cleanup and Waste Management, and Science, Technology and the National Labs.