Atmospheric CO2 concentration

Globally averaged concentration of carbon dioxide (CO2) in the atmosphere for the time period 803’719 BCE – 2018. Shown is data from Bereiter et al. (2015) and the concentration is measured in parts per million (ppm). The long-term global average atmospheric concentrations of CO2 have been combined using several sources, all available at the NOAA/ESRL Global Monitoring Division. Not only the level of CO2 in the atmosphere matters, but also the rate at which it has changed. It took us a matter of decades to achieve larger changes than previous ones, which occurred over centuries or even thousands of years. This gives species, planetary systems, and ecosystems much less time to adapt.

  • Creator: Fabio Crameri
  • This version: 02.11.2021
  • License: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
  • Specific citation: This graphic by Fabio Crameri based on data compiled by Bereiter et al. (2015) is available via the open-access s-Ink repository.
  • Related reference: Bereiter, B., Eggleston, S., Schmitt, J., Nehrbass‐Ahles, C., Stocker, T. F., Fischer, H., … & Chappellaz, J. (2015). Revision of the EPICA Dome C CO2 record from 800 to 600 kyr before present. Geophysical Research Letters, 42(2), 542-549.
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