The main research interest is on physical and chemical processes in multiphase atmospheric systems (aerosols and clouds) and their effects on atmospheric composition change and climate.
I published more than 160 papers on International Journals, receiving more than 8500 citations . I was nominated in the list of Highly Cited Researchers, ranked by Thomson Reuters among the top 1% most cited scientists in Geosciences. I am Lead Author, Working Group 1 (The Physical Science Basis) of the 5th Assessment Report - Intergovernmental Panel on Climate Change. I am/was Principal Investigator in several scientific projects funded by National and European Union. Presently I am of the Scientific Steering Committee, The International Surface Ocean - Lower Atmosphere Study (SOLAS) project and of Global Pollution (i-CACGP)e the International Surface Ocean - Lower Atmosphere Study (SOLAS). I am serving as member, Review Panel, Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder and Member, Scientific Advisory Board, Max Plank Institute for Chemistry, Mainz, Germany. I am member of the ERC Consolidator Grant Panel P10