Since July 2019 is Full Professor at Department of Science of the University Roma Tre. From 1983 to 2019 was Senior Researcher at ENEA. In the period 1983-1990 he worked on geological research for nuclear power sites and on glacial, aeolian and alluvial deposits in order to study paleoclimatic variations in Central Italy. Since 1985 he has been working on glaciology and remote sensing, applied to the study of cryosphere and climate variability of East Antarctica.

He has joined 15 PNRA expeditions to Antarctica. Since 1992 Principal investigator of 10 projects on ice sheet mass balance and 1000 years evolution of East Antarctica for the Antarctic Italian Program as well as member of the Steering committee of the Concordia Station, SCAR/IGBP ITASE, ISMASS, IPICS e EuroPICS programs. Since 2014 is President of Italian Glaciological Committee. His publication list comprises more than 100 peer-reviewed papers. He is referee of several international Journals and research programme in the field of cryosphere and paleoclimate.