The 2025 Pauling Medal has been awarded to
Professor Joseph S. Francisco,
President’s Distinguished Professor of Chemistry, University of Pennsylvania.

The medal will be presented on October 18th, 2025, in recognition of Professor Francisco’s pioneering studies of the chemistry of Earth’s atmosphere. His groundbreaking research reshaped our fundamental understanding of atmospheric processes, including pioneering air-water/microdroplet chemistry.
The symposium will be held at Seattle University and will include a poster session, lectures by eminent scientists and the awardee. speakers, and the ticketed medal presentation banquet. Details are at the Pauling Medal web page. (All events are free and open to the public except for the evening banquet and medal presentation, which is a ticketed event.) We look forward to seeing you there.
