-Environmental chemistry

                                                                                
                                                
  The Oak Ridge National Laboratory (ORNL) Distributed Active Archive           
Center (DAAC) provides information about the Earth's biogeochemical dynamics    
(the chemical interactions among the Earth's surface, water, and air that       
produce changes in the Earth and its climate) to the global change research     
community, policy makers, educators, and the general interested public.         
                                                                                
                                       
  The Carbon Dioxide Information Analysis Center (CDIAC) at ORNL provides       
information to help international researchers, policymakers, and educators      
evaluate complex environmental issues, including potential climate change       
associated with elevated levels of atmospheric carbon dioxide and other         
radiatively active trace gases.                                                 
                                                                                
                                               
 (login "ims", password "larcims")           
  The Langley Distributed Active Archive Center (DAAC) archives and             
distributes radiation budget, cloud, aerosol, and tropospheric chemistry        
data to the general science community.  Data are available via FTP, tape        
and CD-ROM.                                                                     
  Products include data from the Earth Radiation Budget Experiment (ERBE),      
Surface Radiation Budget (SRB), International Satellite Cloud Climatology       
Project (ISCCP), Stratospheric Aerosol and Gas Experiment (SAGE), First         
ISCCP Regional Experiment (FIRE), and Global Tropospheric Experiment (GTE).     
                                                                                
                                                        
                                                   
  Environmental Protection Agency.  A variety of publicly-accessible            
databases, including air pollution data, toxic chemical release data,           
and geographic data.                                                            
                                                                                
------------------------------