DOE’s Environmental Molecular Sciences Laboratory (EMSL) is accepting registration for its Resources for Characterizing Atmospheric Aerosols webinar, scheduled from noon to 1 p.m. Pacific on January 26, 2022. Speakers include Gourihar Kulkarni, who will provide an overview of EMSL’s ice nucleation aerosol chamber; Alla Zelenyuk-Imre, who will detail EMSL’s single-particle mass spectrometry resources; and Swarup China, who will focus on EMSL’s mass spectrometry microscopy and photoacoustic spectrometer resources, as well as discuss opportunities to use ARM and EMSL resources through a single user proposal. The ARM/EMSL call through the Facilities Integrating Collaborations for User Science (FICUS) program will open in early 2022.