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Environmental information systems
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Observed trends in total global concentration of the Kyoto gases
Chart (static)
Note: The threshold concentration range is based on a 50% probability of exceeding 2 degree Celsius temperature increase, given different models and scenarios.
Downloads
Data sources
Metadata
More info
- CDIAC concentration of compounds measured by AGAGE GM-MS (ADS) System, Carbon Dioxide Information and Analysis Center (CDIAC)
- CDIAC concentration of compounds measured by Medusa GM-MS Instruments, Carbon Dioxide Information and Analysis Center (CDIAC)
- Trends in Atmospheric Carbon Dioxide, National Oceanic and Atmospheric Administration (NOAA)
- Trends in Atmospheric Carbon Dioxide, ftp archive, National Oceanic and Atmospheric Administration (NOAA)