May 16, 2006: Greenhouse Gas Index Indicates CFCs Are Declining
WASHINGTON - The U.S. National Oceanic and Atmospheric Administration (NOAA) has issued its Annual Greenhouse Gas Index (AGGI), a benchmark measurement of gases in the atmosphere that affect the earth's climate. This year's AGGI reflects an increase in carbon dioxide (CO2) and nitrous oxide (N2O), but a leveling off of methane (CH4), and a decline in two chlorofluorocarbons (CFCs). Overall, the AGGI shows a continuing, steady rise in the amount of heat-trapping gases in the atmosphere.
"We have a better understanding of the dynamics of earth's climate through our extensive, high quality and sustained observations," said retired Navy Vice Admiral Conrad C. Lautenbacher, Ph.D. undersecretary of commerce for oceans and atmosphere and NOAA administrator. "NOAA adds operational value to climate research by observing and quantifying the changes that are occurring around us, and reporting their effects."