Michel Grutter is professor at UNAM in the Earth Sciences Undergraduate and Graduate programs. He is Head of the Department in Atmospheric Observation and Instrumentation at the Center of Atmospheric Sciences and leads an active research group in the field of spectroscopy and remote sensing. His main research areas are aimed to detect and characterize changes in the Earth’s composition by means of optical methods, using primarily Fourier-Transform InfaRed (FTIR) spectroscopy and Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS). Particular interests are aimed to characterize the source strengths, distribution and transport of air pollutants as well as to identify the variability of climate-relevant species. He is part of the Infrared Working Group (IRWG) in the Network for the Detection of Atmospheric Composition Change (NDACC) and participates in the validation of satellite products (science team member of the TEMPO mission and participant in a TROPOMI-S5P validation initiative). Currently, he is coordinating a project in Mexico to establish a university network of atmospheric observatories nationwide to foster multidisciplinary collaboration and education in atmospheric sciences.