http://www.esrl.noaa.gov/csd/

"The Chemical Sciences Division (CSD) merged programs of the Aeronomy
Laboratory and the Environmental Technology Laboratory on October 1,
2005, as part of the Earth System Research Laboratory (ESRL).
ESRL CSD is an atmospheric research laboratory in the National Oceanic
and Atmospheric Administration (NOAA) / Office of Oceanic and
Atmospheric Research (OAR).
ESRL CSD is located in Boulder, Colorado. The Division is led by
Director A.R. Ravishankara. The Division's approximately 120
scientists, engineers, students, postdoctoral researchers, and support
staff are engaged in research that provides a sound scientific basis
for decisions made in industry and government related to climate
change understanding, air quality improvement, and ozone layer
protection. Over 50% of the staff are employees of NOAA's Joint
Institute with the University of Colorado, the Cooperative Institute
for Research in Environmental Sciences (CIRES). The Division also has
staff members who are employees of NOAA's Joint Institute with
Colorado State University, the Cooperative Institute for Research in
the Atmosphere (CIRA).
ESRL CSD conducts scientific research aimed at discovering,
understanding, and quantifying the processes that govern the chemical
reactions of Earth's atmosphere that are needed to improve the
capability to predict its behavior. Chemical reactions and radiative
processes (heating, cooling, and reactions) drive atmospheric change.
Their identification and characterization are a fundamental necessity
for building better models of the atmosphere and predicting the
behavior of regional and global phenomena, which is at the heart of
NOAA's mission.
ESRL CSD scientists conduct investigations of the atmospheric
processes under controlled conditions in the laboratory, carry out
field measurements in a variety of environments, and use diagnostic
models for analyses and interpretations. CSD also assists the
scientific community in its periodic efforts to assess the current
state of scientific understanding and to interact with those who use
this information, describing it in "user-friendly" terms. In this
regard, a CSD researcher co-chairs the climate-science Working Group
of the Intergovernmental Panel on Climate Change (IPCC), and the Lab
hosts its Technical Support Unit. A CSD researcher also co-chairs the
international scientific panel associated with the United Nations
Montreal Protocol agreement on the ozone layer."