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

More information

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).

Methodology

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.