Jean-Pierre Blanchet, PhD, is professor in the Department of Earth and Atmospheric Sciences at the University of Quebec at Montreal (UQAM), member of ESCER Climate Centre. He has been responsible for developing clouds and radiation processes schemes for two generations of the Canadian Global Climate Model (GCM). Contributing author in the first IPCC, his research is on the intricate feedback processes involving aerosols, clouds, radiation and precipitation in the Arctic climate system. Since over two decades, his work focuses on instrumental development and applications to the observation of cold regions. He has contributed on several major satellite missions, including EarthCARE (ESA, JAXA, CSA) and CloudSat-CALIPSO, parts of NASA’s Earth Observing System (EOS). He is the principal investigator of the far IR spectro-radiometer (TICFIRE) for a major climate mission (A-CCP) in preparation at NASA for the next two decades.