2021: HFCs contribute 1.18% to climate warming influence of GHGs

The US NOAA (National Oceanic and Atmospheric Administration) has released its 2021 update of the AGGI (Annual Greenhouse Gas Index), which follows the evolution of the radiative forcing (ability of all GHGs to trap heat) since the onset of the industrial revolution. The HFC contribution in 2021 is now 1.18% of the total (compared to 1.13% in 2020).