Aerosol-Cloud-Precipitation Interactions in the Climate System In AR4 and earlier reports, focus was on aerosol direct radiative effects and cloud albedo effects Aerosols act in numerous other ways, considered feedbacks in AR4 – This discussion will need to be enhanced Cloud and precipitation dynamics Monsoon dynamics Hurricane dynamics Teleconnections via SST: MOC, NAO, Amazon… Aerosol-precipitation effects may have greater impact than temperature effects Aerosols are considered as geoengineering tools – this will have to be discussed Stratosphere Benard cells Treatment of aerosol-cloud-precipitation effects in models requires improvement