Aerosols can interact with solar radiation by scattering and absorbing light, and they can also act as cloud and ice condensation nuclei affecting cloud properties. These interactions lead to aerosols having an influence on climate change, and thus are included in radiative forcing estimates. The big challenge is that these interactions currently represent one of the largest uncertainties on radiative forcing estimates and need to be reduced to increase our confidence in our climate projections.
In our group we study these aerosol-cloud-radiation interactions with the main objective to reduce the uncertainty gap. These efforts include: contrasting modeling results of these interactions with observations, studying interactions not previously described, and participating in field campaigns where the main objective is to test these interactions.