Data Visualization

Observed trends in total greenhouse gas concentration levels between 1860 and 2021, considering all greenhouse gases and other forcing agents (including aerosols)

Data Visualization Created 06 Feb 2024 Published 20 Feb 2024 Last modified 20 Feb 2024
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The figure includes the contribution of gases covwered by Kyoto Protocol (KPG), gases, and the Montreal Protocol (MPG) and other forcing agents, such as ozone and aerosols (here called non-protocol gases).


The global concentration and forcing from different greenhouse gases and other agents have been taken from literature/data sources. They have been added by using Radiative forcing (see methodology section), and that back to ppm CO2e by the forcing of CO2.

Data sources

AGAGE Data & Figures provided by Advanced Global Atmospheric Gases Experiment (AGAGE)
Greenhouse Gases (NOAA) provided by National Oceanic and Atmospheric Administration (NOAA)

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Temporal coverage