Every year, AGU Fall Meeting convenes >25,000 attendees from 100+ countries to share research and network. Researchers, scientists, educators, students, policymakers, exhibitors, journalists and communicators attend AGU Fall Meeting to better understand our planet and environment, and our role in preserving its future. It is a results-oriented gathering rooted in celebrating and advancing positive individual and collective outcomes.

History & Facts

The first Fall Meeting was in April 1920 in San Francisco, California. It was also known as the Spring Meeting when AGU had two meetings each year. San Francisco served as the “home” of Fall Meeting until 2017 when AGU adopted the rotation strategy.


AGU Fall Meeting was our first hybrid meeting held in Chicago, IL and online everywhere with 23,700+ registered attendees.

Learn More About the 2022 Fall Meeting

AGU Fall Meeting was our first hybrid meeting held in New Orleans, LA and online everywhere with 24,000+ registered attendees.

Learn More About the 2021 Fall Meeting

AGU Fall Meeting was a 100% virtual meeting with 25,400+ registered attendees

Learn More About the 2020 Fall Meeting

AGU Fall Meeting was held in San Francisco, CA with 27,934 registered attendees. It was also AGU’s Centennial anniversary and an opportunity to celebrate the 100 years of service to the scientific community. 

Learn More About the 2019 Fall Meeting

AGU Fall Meeting was held in Washington, D.C. with 28,289 registered attendees. This meeting also celebrated the grand opening of AGU’s net zero energy renovation headquarters.


AGU Fall Meeting was held in New Orleans LA with 22,632 registered attendees.

Interesting Facts

AGU23 infographic

Affiliated Societies

Below is the list of current affiliated societies and organizations. If you would like for your society to be considered as an affiliate, please email the Meetings Team.

  • ACSESS: Alliance of Crop, Soil, and Environmental Science Societies
  • AAS: American Astronomical Society
  • AMS: American Meteorological Society
  • APHA: American Public Health Association
  • ASPRS: American Society for Photogrammetry and Remote Sensing
  • ASA: American Society of Agronomy
  • AOGS: Asia Oceania Geosciences Society
  • LATINMAG: Asociación Latinoamericana de Paleomagnetismo y Geomagnetismo
  • CGU: Canadian Geophysical Union
  • CGS: Chinese Geophysical Society
  • CSSA: Crop Science Society of America
  • ESA: Ecological Society of America
  • EGU: European Geosciences Union
  • FASEB: Federation of American Societies for Experimental Biology
  • GS: Geochemical Society
  • GAC: Geological Association of Canada
  • GSA: Geological Society of America
  • IAS: International Association of Sedimentologists
  • ISEE: International Society of Environmental Epidemiology
  • ISES: International Society of Exposure Science
  • JpGU: Japan Geoscience Union
  • MSA: Mineralogical Society of America
  • NAGT: National Association of Geoscience Teachers
  • NSPS: The National Society of Professional Surveyors
  • Optica (formerly OSA)
  • SETAC: Society of Environmental Toxicology and Chemistry
  • SEG - Society of Exploration Geophysicists
  • SEPM: Society for Sedimentary Geology
  • SSSA: Soil Science Society of America
  • UGM: Unión Geofísica Mexicana
  • WCRP: World Climate Research Programme
  • The AGU membership requirement for abstract first authors will be waived for members of a co-sponsoring society. The deadline to request a waiver was 19 July. Please contact the AGU Scientific Program Team with any questions.