| Weekly Data | Atmospheric CO2 |
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NOAA-ESRL updated weekly data on Sunday May 13, 2012. ("ppm" means parts per million)
Weekly Data & Info (Mauna Loa Observatory)
NOAA-ESRL | Weekly CO2 Data Since 1974 NOAA-ESRL | Weekly CO2 Information and Links
More Data & Info (Mauna Loa Observatory)
CO2Now | Global CO2 Board CO2Now | Monthly CO2 Data (Mauna Loa) CO2Now | Annual CO2 Data (Mauna Loa & Global) CO2Now | Acceleration of Atmospheric CO2
Daily & Weekly CO2 Graph
The graph below is updated weekly by NOAA-ESRL. It shows the daily and weekly (Sunday through Saturday) mean concentration of carbon dioxide measured in the atmosphere at the Mauna Loa Observatory in Hawaii, USA.
Note
Recent data is preliminary pending recalibrations of reference gases and other quality control checks. |
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