Arlene Fiore

Peter H. Stone and Paola Malanotte Stone Professor of Earth, Atmospheric and Planetary Sciences

Contact Info:

Office Phone






Brenda Carbone 617.253.3993

Atmospheric chemist studying interactions among pollutant emissions, regional air quality, global atmospheric composition, and climate.

Research Interests

I study the two-way interactions between air pollutants and the climate system, at scales of space and time ranging from urban to global, and from daily to decades-long.

My group, TEAMPACCC (Trends in Earth’s Atmospheric Makeup: Pollution of the Air – Chemistry – Climate Connections), applies chemistry-transport and chemistry-climate models that generate hundreds of terabytes of data, and we analyze them alongside observations from ground, airborne, and satellite platforms. We aim to advance the understanding of how anthropogenic and natural pollutant emissions influence atmospheric chemistry, climate, and air pollution—and the processes that govern their interactions. We also collaborate with air quality and public health managers to develop applications for satellite data to address their emerging needs.

Topics I investigate:

Biographic Sketch

Arlene Fiore joined the EAPS faculty in 2021 as the Peter H. Stone and Paola Malanotte Stone Professor of Earth, Atmospheric and Planetary Sciences. She attended Harvard University, earning an AB in environmental geoscience in 1997 and completing her PhD studies in Earth and planetary sciences in 2003. Fiore spent seven years as a research scientist in the NOAA Geophysical Fluid Dynamics Laboratory before being appointed to the faculty at Columbia University’s Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory in 2011.

Fiore has a long history of professional service, including serving on the National Academy of Sciences Board on Atmospheric Sciences and Climate, multiple NCAR (National Center for Atmospheric Research) advisory panels and committees, and has authored or co-authored numerous reports on issues of air quality and climate for policymakers and government agencies. As a principal investigator and member of the NASA Health and Air Quality Applied Sciences Team, she partners with air and health management groups to address emerging needs with applications of satellite and other Earth science datasets. Among other honors, Fiore has been recognized by the American Geophysical Union with the James R. Holton Junior Scientist Award in 2005 and the James B. Macelwane Medal in 2011.

Key Awards & Honors

  • 2019 • Thompson Lecturer, National Center for Atmospheric Research
  • 2017 • 13th Excellence in Mentoring Award, Lamont-Doherty Earth Observatory
  • 2011 • James B. Macelwane Medal, American Geophysical Union
  • 2006 • Presidential Early Career Award for Scientists and Engineers (PECASE)
  • 2005 • James R. Holton Junior Scientist Award, American Geophysical Union

Key Publications

  • Fiore, A.M., S.E. Hancock, J.-F. Lamarque, G.P. Correa, K.-L. Chang, M. Ru, O. Cooper, A. Gaudel, L.M. Polvani, B. Sauvage, J.R. Ziemke (2022), Understanding recent tropospheric ozone trends in the context of large internal variability: A new perspective from chemistry-climate models, Environ. Res.: Climate 1 025008 doi:10.1088/2752-5295/ac9cc2

  • Fiore, A. M., Milly, G. P., Hancock, S. E., Quiñones, L., Bowden, J. H., Helstrom, E., et al. (2022). Characterizing changes in eastern U.S. pollution events in a warming world. Journal of Geophysical Research: Atmospheres, 127, e2021JD035985. doi: 10.1029/2021JD035985

  • Fiore, A.M., L.J. Mickley, Q. Zhu, C.B. Baublitz (2024). Climate and Tropospheric Oxidizing Capacity. Annu. Rev. Earth Planet. Sci. 2024. 52:11.1–11.29. doi:10.1146/annurev-earth-032320-090307