"The Climate Monitoring and Diagnostics Laboratory (CMDL) of the National Oceanic and Atmospheric Administration conducts sustained observations and research related to source and sink strengths, trends and global distributions of atmospheric constituents that are capable of forcing change in the climate of Earth through modification of the atmospheric radiative environment, those that may cause depletion of the global ozone layer, and those that affect baseline air quality." Students can find helpful descriptions and figures about climatic forces, greenhouse effect, and the carbon cycle. Researchers can find an abundance of climate-related data sets and lists of CMDL publications. The website presents clear descriptions and interactive tours of CMDL's worldwide facilities. Visitors can view near real-time and great archived images from the South Pole Live Camera. The site offers links to the homepages of CMDL research groups and observatories where users can obtain more in-depth information.