The role of aerosol declines in recent warming

The role of aerosol declines in recent warming

This is a re-post from The Climate Brink Over at Carbon Brief I have a new detailed explainer on aerosols. They have a major (but poorly constrained) cooling effect on the climate, masking about 0.5C warming from CO2 and other greenhouse gases that would otherwise have occurred. However, we are rapidly reducing both aerosol emissions and their resulting climate cooling effect. Global emissions of SO2, the most important aerosol, have fallen by 4…